CN2755093Y - Water-containing refuse treater - Google Patents

Abstract

The utility model provides an energy-saving water-containing garbage treatment device, which adopts a stirring impeller capable of processing water-containing garbage in a short time, and does not need an external heating device. The reaction chamber is equipped with a feeding port for putting in water-containing garbage; while cutting, crushing, and stirring the water-containing garbage, it is transported to the stirring part in a specified direction; Functional baffle; along the inner wall of the reaction chamber, it is inclined upward and inward at a certain angle, and the bottom of the stirring part forms a semi-cylindrical shape with the largest diameter along the outer edge of the stirring impeller.

Description

Aqueous garbage treatment device

technical field

The present invention relates to a water-containing garbage treatment device which stirs and composts the water-containing garbage while transporting the water-containing garbage.

Background technique

Since water-containing garbage such as non-staple food residues can be composted, a water-containing garbage treatment device with a stirring function that promotes its fermentation and decomposition has been developed. For example: in the water-containing garbage treatment device recorded in the patent No. 8-217582 communique, the fermentation chamber is composed of interior and exterior two chambers, and a heater is installed outside the bottom of the interior chamber to stir the water-containing garbage that is dropped into the fermentation chamber. This processing machine raises the temperature in the fermentation chamber to an appropriate fermentation temperature by heating, and maintains an environment in which microbial fermentation can effectively proceed. Furthermore, stirring is performed by means of a rotor fixed on a drive shaft fixed horizontally in the center of the fermentation chamber, said rotor rotating in a vertical plane. The shape of the rotor is: from the front end of the rotor to the rear end of the rotor is a continuous dart shape, the front end of the rotor is flat, and the rear end of the rotor is curved.

Similarly, the pulverizing and stirring device described in Patent No. 11-76855 has a processing chamber that can accommodate the processed material, an upwardly tapered cylindrical porous mixing drum that is suspended in the center of the processing chamber, and a propeller fitted in the inner wall of the mixing drum. , A stirring impeller that rotates along the bottom of the processing chamber and gathers the processed objects to the center while stirring them. In addition, the lower end of the mixing drum is sawtoothed, and a blower is provided to blow hot air into the treatment chamber, and the processed material stirred by the stirring impeller is repeatedly pulverized and composted by the mixing drum and propeller.

Contents of utility models

The machines and mixing machines mentioned in the background art for treating water-containing garbage require a heating device, so there is a problem of high cost.

The invention is an energy-saving water-containing garbage treatment device without a heating device, which can promote its fermentation and decomposition in a short time. The purpose of the present invention is to be able to process the water-containing garbage produced by small and medium-sized canteens, restaurants, etc. on the same day.

The utility model is a device for treating water-containing garbage in a reaction chamber through an impeller installed on a drive shaft to stir the water-containing garbage and make it compost. The feature of this water-containing garbage processing device is: the above-mentioned reaction chamber is designed with a feeding port for putting in water-containing garbage, a stirring part that makes the water-containing garbage flow in a prescribed direction while cutting, crushing, and stirring the water-containing garbage; The forward inclined baffle plate reverses the flow direction of the water-containing garbage; the interior wall of the reaction chamber is upwardly inclined only to a certain angle inwardly; the bottom shape of the stirring part is a semi-cylindrical shape along the maximum diameter rail of the outer periphery of the stirring impeller.

The utility model is characterized in that: the stirring impeller is fixed on the drive shaft and is perpendicular to the axis; the front end of the stirring impeller is in the shape of a flat plate, and is designed into a curved shape with an increased curvature radius of the outer edge; The blade used; the rear end of the mixing impeller is bent and inclined to the axis.

The utility model is characterized in that: the above-mentioned drive shafts are two parallel shafts designed at the bottom of the reaction chamber, and the rotation directions of the two drive shafts are different.

The utility model is characterized in that: a ventilation hole is designed on the upper part of the reaction chamber, and the gas with high temperature and high humidity generated in the reaction chamber can enter the cooling and dehumidification device through the ventilation hole, thereby adjusting the temperature and humidity in the reaction chamber .

The utility model is characterized in that: the heat generated by the friction between the stirring impeller and the water-containing garbage increases the temperature in the reaction chamber.

The utility model can make the water-containing garbage circulate and stir efficiently, that is, only by inclining the inner wall of the reaction chamber at a certain angle to the inside, so as to increase the compression heat of the water-containing garbage and its processed materials when they rise during the circulation and stirring process, and can prevent the water-containing garbage from falling. Agglomeration and agglomeration of treated objects. And, because the bottom forms a semi-cylindrical shape, there is no hollow around the stirring impeller of the stirring part (that is: if it is a rectangle, it may not be stirred at the corner).

The utility model is equipped with a blade for cutting on the outer edge of the front end of the impeller, and its shape is designed as a curved shape with an increased radius of curvature, so that the impeller is inclined to the forward direction of the material, so that the water-containing garbage is broken and squeezed while stirring. towards the drive shaft and prevent debris from adhering to the blade tip and impeller.

The utility model sets the rotation direction of the driving shaft to different directions, so that the water-containing garbage can be crushed, mixed, transported and stirred more effectively.

In the utility model, the gas with high temperature and high humidity generated in the reaction chamber is introduced into the cooling and dehumidification device through the vent hole designed on the upper part of the reaction chamber, and the cooling and dehumidification treatment is carried out. Therefore, the state in the reaction chamber is a suitable environment for the composting of aqueous waste. That is, it provides conditions for activating aerobic microorganisms and promoting the decomposition of water-containing garbage.

The aerobic microbial group of the utility model will generate fermentation heat during fermentation, thereby raising the temperature in the reaction chamber; in the initial stage, the temperature in the reaction chamber will be raised by frictional heat to promote the composting of water-containing garbage.

Brief description of the drawings

Fig. 1 is a front view of an agitating impeller suitable for use in an aqueous waste treatment apparatus of the present invention.

Fig. 2 is a partially omitted side schematic view of an example of an aqueous waste treatment device.

Fig. 3 is a sectional view along line A-A of Fig. 2 .

The best embodiment of the utility model

Turn the agitating impeller in the reaction chamber, and in the treatment device that cuts and agitates the water-containing garbage, it is equipped with a stirring part that transports the water-containing garbage in a certain direction while stirring the water-containing garbage. A baffle with the end pointing upwards and sloping forward so that the waste (in the reaction chamber) circulates (flows) to be able to process the water containing waste. In addition, by inclining the inner wall of the reaction chamber at a certain angle to the inside and making the bottom of the stirring part form a semi-cylindrical shape along the outer edge of the stirring impeller, this prevents the agglomeration of water-containing garbage and the existence of a hollow around the impeller, thereby enhancing Mixing cycle efficiency.

Fig. 1 is a plan view of an example of an agitating impeller suitable for use in an aqueous waste treatment apparatus of the present invention. As shown in Figure 1, the stirring impeller 1 is an impeller that changes continuously from the front end 1a of the impeller to the rear end 1b of the impeller. state. The front end 1a of the impeller is flat, and its outer edge gradually forms a curve with an increasing radius of curvature from the junction with the drive shaft on the impeller surface, that is, a curve with an increased distance from the center of the drive shaft 2 . In order to prevent the fibrous material of water-containing garbage from being rolled into the drive shaft 2 and to prevent the fibrous material of water-containing garbage from adhering to the stirring impeller 1, the front end 1a of the impeller 1 is vertically installed with respect to the axis of the drive shaft. In addition, the edge of the front end 1a of the impeller is provided with a blade 1c forming an acute angle in section, thereby more effectively crushing water-containing garbage.

The impeller 1b is in the shape of a curved plate, and its shape is sufficient as long as it can squeeze water-containing waste or the like in a predetermined direction along the axis of the drive shaft 2 while stirring. It is recommended that the shape of the impeller 1b be wedge-shaped, and the effect will be better. Specifically, the outer edge of the impeller rear end 1b from the impeller front end 1a is a continuous circular arc of a certain length, even if a curve is formed between its terminal end and the drive shaft 2; The curve is concave. Such a design can prevent water-containing garbage and its treated matter from adhering to the stirring impeller 1, and at the same time can enhance stirring. It will be described in more detail below. The water-containing garbage and its processed product are mixed and stirred, and the microorganisms contained in the processed product (composted water-containing waste) ferment and compost it.

FIG. 2 is a schematic plan view with some deletions of an example of the device 10 for treating water-containing garbage according to the present invention. Fig. 3 is a schematic cross-sectional view of Fig. 2A-A line. This water-containing garbage treatment device 10 is made of a rectangular casing 7 and a reaction chamber 4 containing drive shafts 2, 2 (two shafts), and the drive shaft is located inside the casing 7 and a plurality of the above-mentioned impellers 1 are installed. In addition, in order to control the temperature and humidity in the reaction chamber 4, driving devices such as a cooling and dehumidifying device 5, a control device 20, and a stirring motor 6 for driving a drive shaft to rotate are provided. The freely rotatable feeding cap installed on the top of shell 7 will design its switch under the premise that can seal charging inlet 3 tops. Therefore, the reaction chamber 4 is composed of a stirring part 4a at the bottom for mixing, stirring, and extruding the water-containing garbage and its processed products, and a circulation part 4b at its upper part.

On the drive shaft 2, a plurality of stirring impellers are installed at regular intervals. The stirring impeller 1 is as described above, and the installation angle of the front end 1 a of the impeller is perpendicular to the axis of the drive shaft 2 . In this way, by installing the impeller front end 1a perpendicular to the axis, for example, since a vertical force is applied to the water-containing waste, it is possible to more effectively crush the water-containing waste. In addition, the plurality of agitating impellers 1 are located at axially symmetrical positions with respect to one drive shaft, and are fixed at approximately equal intervals in the axial direction. The relative installation positions of the stirring impellers 1 on the two drive shafts are: the installation position of the stirring impellers on one drive shaft is the middle position of the two stirring impellers on the other drive shaft (that is, the impellers on the two drive shafts are mutually cross-mounted).

As shown in Figure 3, in order to pressure-feed the water-containing garbage and its treatment material from one end of the drive shaft 2 to the other end (direction B in Figure 3), a plurality of stirring impellers 1 are installed in the same direction. In addition, at the other end of the drive shaft, at least one stirring impeller is reversely installed relative to other impellers 1 . This reversely installed agitating impeller can change the direction of motion of the water-containing garbage, etc. that are pressed into the other end of the drive shaft and make it move upwards (the direction of C shown in Figure 3), thereby making the water-containing garbage, etc. in the reaction chamber 4 Automatically forms a loop. Due to the arrangement of the baffle 9, this cycle will be carried out more efficiently.

The installation state of the stirring impeller 1 is that the water-containing garbage can be squeezed to a certain direction through the front end 1a of the impeller; the rotation direction of the drive shaft 2 is to make the drive shaft rotate towards the direction that can crush the water-containing garbage. That is, by the rotation of the drive shaft and the impeller, the curved surface of the impeller rear end 1b is provided in the advancing direction with respect to the direction (B direction shown in FIG. 3 ) of pressure-feeding the pulverized water-containing garbage. In the case of an aqueous waste treatment device 10 containing two parallel drive shafts 2, 2, as shown in Figure 2, the rotation directions of each drive shaft 2, 2 are: one axis is clockwise, and the other axis is counterclockwise , and thereby install the fixed stirring impeller 1. Therefore, a plurality of stirring impellers 1 are respectively installed on the two parallel shafts 2, 2, and the installation directions of the front ends 1a of the impellers on the two shafts are opposite. In addition, the driving shafts provided in the stirring part 4a are preferably two parallel shafts, but of course one or more than three shafts are also possible.

The circulation part 4b has a partial cuboid space capable of fully circulating water-containing garbage and its processed products. Like this, by arranging spacious circulation part 4b, thereby can make the water-containing garbage positioned at reaction chamber 4 top fully contact with air, obtain appropriate amount of oxygen and can recirculate (repeated circulation refers to that garbage can recirculate). Thereby, aerobic microorganisms are activated, and decomposition of water-containing waste is promoted. On this basis, the inner wall 4c of the reaction chamber 4 is only inclined inward by a certain angle θ with respect to the vertical plane. This angle θ can improve the heat of compression when the water-containing garbage and its processed product rise in the circulation stirring process and prevent the agglomeration when falling, thereby preventing hollowing (that is, around the impeller 1) from occurring around the impeller 1 of the stirring portion 4a. garbage is not well stirred and disposed of). For example, if the angle θ is set to 3-5°, the agitation cycle of the water-containing garbage and its processed products will proceed smoothly. And, because the corner portion of the partial cube designed in the reaction chamber 4 is a curved surface along the outer edge of the stirring impeller 1, the stirring cycle of the water-containing garbage and its processed products can be carried out more smoothly.

The water-containing garbage thrown into the reaction chamber 4 is crushed, mixed and squeezed in the stirring part 4a, and then circulated back to the stirring part 4a through the circulation part 4b. In this process, the water-containing garbage undergoes fermentation reaction and is fertilized. The exothermic effect generated by this fermentation reaction causes the moisture contained in the water-containing garbage to be evaporated, and CO ₂ gas is generated through the fermentation reaction. Moreover, the device decomposes the water-containing garbage through the exothermic effect of the fermentation reaction of the water-containing garbage; in the initial stage, the temperature of the water-containing garbage can be raised to the activity temperature of microorganisms. This rise in temperature is achieved due to the frictional heat generated by the friction of the reaction chamber 4, the stirring impeller 1, and water-containing garbage, thereby allowing the temperature to quickly rise to the temperature at which microbial activities are active.

On the upper part of the circulation part 4b, a ventilation hole 8 composed of an exhaust hole 8a and a dry air supply hole 8b is provided, and they are connected to the cooling and dehumidifying devices 5, respectively. The gas with high temperature and high humidity generated in the reaction chamber 4 enters the cooling and dehumidification device 5 through the exhaust hole 8a, and is cooled and dehumidified. The separated moisture is stored in a certain container, and the cooled gas returns to the reaction chamber 4 again through the dry air supply hole 8b. The high-temperature and high-humidity (that is, high temperature and high humidity) gas introduced into the cooling and dehumidification device 5 is cooled and dehydrated, and then discharged through the exhaust hole 8a to become dry gas. The adjustment of the temperature and humidity in the reaction chamber 4 is regulated by the control device 20, thereby forming the optimum state of the fermentation reaction of the water-containing garbage.

This water-containing garbage processing device 10 is mainly controlled by the stirring motor 6 that drives the stirring impeller 1 in the stirring portion 4a of the lower part of the reaction chamber 4, drives the cooling, and controls the control device 20 of the dehumidification device 5, and puts it into the reaction chamber. of aqueous waste for disposal. Therefore, the heating device installed on the water-containing garbage treatment device in the past to promote fermentation is unnecessary, thereby realizing energy saving. In particular, since the agitating impeller 1 can efficiently perform crushing, mixing, and agitation, the fermentation reaction of water-containing garbage can occur in a short time. In addition, since no external heating device is used, further energy saving has been realized. For example, about 20 kg of water-containing garbage with a water content of about 80% by weight can be composted by using a 200v, 2.2kw stirring motor for 6 hours.

Hereinafter, it will be specifically described. First, about 20kg of water-containing garbage produced by small-scale restaurants is dropped into from 8 places of water-containing garbage feeding port. At the same time, a certain amount of treatment residue containing a large number of microorganisms after composting the day before yesterday was input at the same time. Effective microorganisms such as bacteria, actinomycetes, and filamentous bacteria may be used instead of treatment residues. Close the water-containing garbage feeding port 3, press the start button, and the stirring motor 6 powered on starts to start. The water-containing garbage thrown in is crushed at the front end of the impeller 1 while being mixed and pressed to the B direction shown in Figure 3 under the action of the curved surface at the rear end of the impeller. The water-containing garbage that is pressed to the other end is squeezed upwards and rises along the baffle plate 9 under the action of the agitating impeller 1 installed in the opposite direction, and turns over in the direction C as shown in FIG. 3 . Thus, the water-containing garbage is circulated and stirred in the reaction chamber 4 .

The composting of water-containing garbage is realized by the fermentation produced by microorganisms or the action of enzymes secreted by these microorganisms; therefore, in order to make the fermentation reaction more effective, the temperature, moisture, Humidity, oxygen content, etc. are necessary. In this device, the water-containing garbage thrown in is crushed at the bottom of the reaction chamber 4, mixed, and pressure-fed (meaning extrusion conveying), whereby the water-containing garbage and microorganisms are fully mixed. And, since the upper part of the reaction chamber 4 having a sufficient space is in contact with air, supplied with oxygen, and repeatedly circulated, the aerobic organisms are activated to easily undergo fermentation reactions.

In the above treatment method, driven by the stirring motor 6, the water-containing garbage in the reaction chamber is mixed and circulated, and the temperature starts to rise. The electric power consumption of the stirring motor 6 measured by the current value shows a relatively high value at the beginning of the initial reaction mainly to the crushing of the object to be stirred, and gradually decreases after about 1 hour, and then basically reaches a constant value. In about 2 hours, the stirred material reaches about 75°C, the odor of the water-containing garbage disappears, and it reaches a state where it will not be corrupted even if it is left alone. Therefore, it can be used as compost in combination with auxiliary materials such as rice husks and sawdust, or in consideration of its use, and composting can be completed in a very short time.

In order not to involve harmful problems such as poor germination or stunted growth of plants, the fermentation reaction can be further carried out without using auxiliary materials. The temperature that can maintain fermentation and keep microorganisms from dying, for example, can maintain a temperature of 75° C. by controlling the stirring motor 6 and the cooling and dehumidification device 5 to start and close, and the fermentation reaction can continue. By starting and closing the stirring motor 6 and/or the cooling and dehumidification device 5, the fermentation reaction temperature can be maintained at 60-90° C., more ideally between 70-80° C., and the humidity of the reactants can be maintained at about RH60%. By keeping the fermentation conditions within this range, the microbes are not killed and composting is promoted. In addition, temperature and humidity are measured using respective sensors.

The water-containing garbage treatment device achieves miniaturization and energy saving because composting is realized by the action of the stirring motor and the cooling motor. As a result, small and medium-sized canteens, restaurants, restaurants, etc. can process the water-containing garbage generated on this day within the same day. In addition, since the stirring impeller of this device has high stirring efficiency, the reaction chamber can be enlarged.

Claims (4)

1. A water-containing garbage treatment device, which stirs water-containing garbage in the reaction chamber through an impeller installed on the drive shaft and makes it compostable. The feature of this water-containing garbage treatment device is: the reaction chamber is designed to input Garbage feeding port; cutting, crushing, and stirring the water-containing garbage while making it flow in a specified direction; a baffle designed from the end of the above-mentioned stirring section to reverse the flow direction of the water-containing garbage; The inner wall of the reaction chamber is upward and only inclined to the inside at a certain angle; the shape of the bottom of the above-mentioned stirring part is a semi-cylindrical shape along the maximum diameter rail of the outer periphery of the stirring impeller. 2. The water-containing garbage treatment device according to claim 1, characterized in that: the stirring impeller is fixed on the drive shaft and is perpendicular to the axis; the front end of the stirring impeller is in the shape of a flat plate, and is designed to increase the radius of curvature of its outer edge The curved shape; the cutting blade is designed on its outer edge; the rear end of the stirring impeller is bent and inclined to the axis. 3. The water-containing garbage treatment device according to claim 2, characterized in that: the drive shafts are two parallel shafts designed at the bottom of the reaction chamber, and the rotation directions of the two drive shafts are different. 4. The water-containing garbage treatment device according to any one of claims 1 to 3, characterized in that: a ventilation hole is designed on the upper part of the reaction chamber, and the gas with high temperature and high humidity generated in the reaction chamber can pass through The ventilation hole enters into the cooling and dehumidification device, thereby adjusting the temperature and humidity in the reaction chamber.

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