WO2019101149A1 - Process for manufacturing integrally prefabricated pumping station base - Google Patents

Abstract

Disclosed is a process for manufacturing an integrally prefabricated pumping station base. The base comprises an upper housing (1) and a lower housing (2), wherein a carrier plate (3) is provided between the upper housing (1) and the lower housing (2). The manufacturing process comprises the following steps: pre-processing for a mould, wherein the mould comprises a lower mould and an upper mould, the lower mould is used for shaping the lower housing (2) and the carrier plate (3), the upper mould is used for shaping the upper housing (1), and a release agent is spread on shaping faces of the upper mould and the lower mould; shaping of the lower housing and the carrier plate using the lower mould, comprising uniformly spreading a raw material on the shaping face of the lower mould, arranging the upper mould corresponding to the lower mould, with the shaping face of the upper mould coming in contact with a product face of the lower housing, and coating the raw material on the shaping face of the upper mould; and curing and demoulding for respectively removing the upper mould and the lower mould from the cured and shaped base. The base manufactured with the manufacturing process is advantageous to quickly discharge a sewage mixture, is high in strength, has good adaptability, and improves the sewage discharge performance of the overall pumping station.

Description

Manufacturing process of integrated prefabricated pump station base Technical field

The invention relates to a manufacturing process of an integrated prefabricated pump station base.

Background technique

The integrated prefabricated pumping station is widely used in many fields such as tap water source, water, sewage, industrial wastewater transportation. Due to the complex composition of water, it contains various granules, rags, paper products, wood products, rubber products, plastic products and various soft products. A considerable part of the heavier particles enter the cylinder with water. The bottom of the cylinder is not easily drained by the pump.

The base of the traditional pumping station uses a flat base. The pump and the base have a large gap. The sewage cannot be quickly sucked, and the flat base is easy to accumulate sludge and accumulated water, which affects the efficiency of the pump. The sewage particles accumulate in the pumping station. Volatile and toxic and flammable gases are volatilized, which is harmful to the safe and normal maintenance of the pumping station.

Chinese Patent No. 201520723679.7 discloses a prefabricated pump station, which comprises a cylinder body and a base. The cylinder body is arranged on the base. The base body comprises a bottom plate and a side plate. The bottom plate is located at a lower end of the cylinder body, and the upper end of the bottom plate and the side plate are connected to form a receiving cavity. The side plate is provided with at least one filling hole, the pouring hole is in communication with the receiving cavity, and the bottom plate is provided with a mounting hole, the cylinder body is provided with at least one water pump, at least one coupling mechanism, and the anchoring piece is fixed to the bottom plate through the mounting hole Upper, one end of the coupling mechanism is connected to the water pump.

Chinese Patent No. 201510246115.3 discloses a prefabricated pump station base, which is a double bottom structure, comprising an upper bottom located above, a lower bottom located below the upper bottom and connected to the upper part of the upper bottom, upper bottom and lower layer A bottom portion is provided between the bottom portion for accommodating the filler, and the double bottom portion is provided with a grouting hole for filling the hollow portion with the filling, the upper bottom portion including an extending portion extending downward inwardly, and the bottom end of the extending portion The horizontal portion of the connection is provided with a reinforcing rib at the joint between the upper bottom and the lower bottom.

The above prior art has the following drawbacks:

1. The base adopts a flat base, which has a large gap between the pump and the base, and cannot quickly suck the sewage;

2. It is easy to accumulate sludge and accumulated water at the edge of the base, which affects the efficiency of the pump;

Therefore, how to provide a self-cleaning base structure for prefabricated pumping stations in order to accelerate the rapid discharge of sludge and accumulated water has become an urgent problem to be solved in the industry.

Summary of the invention

In view of the defects of the prior art, the present invention provides a manufacturing process of an integrated prefabricated pump station base, which has a simple process, a fast forming, and is suitable for promotion.

In order to achieve the above object, the present invention provides a manufacturing process of an integrated prefabricated pump station base. The base includes: an upper casing and a lower casing, and a carrier plate is disposed between the upper casing and the lower casing; The manufacturing process includes the following steps:

S1: pre-treating the mold: the mold comprises a lower mold and an upper mold, the lower mold is used for forming the lower shell and the carrier, the upper mold is used for forming the upper shell; and the mold is applied on the forming surfaces of the upper and lower molds. Agent

S2, molding the lower casing and the carrier by using the lower mold: uniformly coating the raw material on the molding surface of the lower mold;

S3, the upper mold corresponds to the lower mold setting, the molding surface of the upper mold is in contact with the product surface of the lower casing, and the raw material is painted on the molding surface of the upper mold;

S4. Curing and demolding: respectively separating the upper mold and the lower mold from the solidified base.

The manufacturing process provided by the invention realizes the integrated forming of the base of the prefabricated pumping station, wherein the carrier plate is designed as a slope with grooves, and the carrier plate and the lower casing are both formed by the lower die at one time; the lower casing and the lower casing are After the forming of the carrier plate is completed, the upper mold is placed at a designated position, and the upper casing is formed by the upper mold; correspondingly, the upper mold is disposed corresponding to the lower mold, and the upper casing is in contact with the lower casing during the molding process, due to The upper casing and the lower casing use the same raw material, so that a seamless connection can be achieved between the two, and the integrity between the upper casing and the lower casing is ensured.

According to another embodiment of the present invention, the step S2 further comprises the step S21: laying the reinforcing cloth on the molding surface of the lower mold after the raw material is applied; the function of the reinforcing cloth is to increase the strength, and the reinforcing material is provided to make the raw material easier. Attached to the forming surface, especially when the forming surface is a bevel, it not only ensures the thickness of each molding, but also achieves better uniformity of the coating.

According to another embodiment of the present invention, in step S21, the reinforcing cloth is impregnated into the raw material, and the bubbles in the reinforcing cloth and the raw material are discharged, and the bubbles are eliminated to ensure the molding quality.

According to another embodiment of the present invention, step S2 further includes the step S22: uniformly applying the raw material to the reinforcing cloth, the reinforcing cloth being immersed in the raw material of the lower layer, and the reinforcing cloth is immersed in the lower layer raw material as the raw material is condensed, Apply the material to the reinforced cloth again to increase the overall thickness of the base.

According to another embodiment of the invention, the thickness of the material between adjacent reinforcing fabrics is the same.

According to another embodiment of the present invention, steps S21 and S22 are repeated until the base reaches a predetermined thickness, and the preset thickness is: 30 mm to 40 mm; correspondingly, the thickness of the lower case and the upper case are the same; preferably, The overall thickness of the base is 40mm.

According to another embodiment of the present invention, the step S2 and the step S3 each include a step of adding an additive to the raw material: the additive includes a curing agent, a promoter, a pigment paste, and a gel coat may be added to the raw material, and after adding The raw material is fully stirred, and the raw material is better shaped by the action of the additive, which saves molding time and improves efficiency.

According to another embodiment of the present invention, step S4 further includes step S41: providing a reinforcing rib at a position where the lower casing and the upper casing are in contact with each other, and the purpose of providing the reinforcing rib is to enhance the strength of the joint, preferably, strengthening The material of the rib is the same as the material of the upper shell and the lower shell, and the reinforcing rib is strengthened before the base is solidified, so that the rib is better integrated with the upper shell and the lower shell.

According to another embodiment of the present invention, step S4 further includes step S42: opening the grouting hole: opening a plurality of grouting holes in the circumferential direction of the lower casing, the grouting holes communicating with the inner space of the lower casing, and the number of grouting holes is 8 -15, preferably, the number of grouting holes is 12, and the interval is set on the lower casing.

According to another embodiment of the invention, the reinforcing cloth is a glass mat.

In the present invention, the thickness of the raw material coated each time can be measured by infrared rays to ensure uniform thickness.

In the present invention, the upper casing and the lower casing can be simultaneously molded. Before the curing process, the lower casing and the upper casing are connected to each other, and then the reinforcing ribs are added, and then the solidification treatment is performed to realize the integrated molding of the base.

Compared with the prior art, the invention has the advantages that the base plate formed by the manufacturing process is designed as a self-cleaning structure, which is convenient for quickly discharging the sewage mixture; the manufactured base has high strength and good adaptability.

The invention will be further described in detail below with reference to the accompanying drawings.

DRAWINGS

1 is a schematic flow chart of a manufacturing process of a base;

2 is a schematic view showing the overall structure of a base manufactured by the process of FIG. 1;

Figure 3 is a cross-sectional view of Figure 2 .

Detailed ways

Example 1

The embodiment provides a manufacturing process of the integrated prefabricated pump station base. As shown in FIG. 1 , the base includes: an upper casing and a lower casing, and a carrier plate is disposed between the upper casing and the lower casing; Includes the following steps:

S1: pre-treating the mold: the mold comprises a lower mold and an upper mold, the lower mold is used for forming the lower shell and the carrier, the upper mold is used for forming the upper shell; and the mold is applied on the forming surfaces of the upper and lower molds. The agent is thoroughly dried.

S2, molding the lower casing and the carrier plate by using the lower mold: uniformly coating the raw material on the molding surface of the lower mold, and laying a reinforcing cloth on the surface of the lower mold after the raw material is applied, and discharging the bubbles in the reinforcing cloth and the raw material After a while, the material is evenly applied to the reinforced cloth again. Repeat the steps of laying the reinforced cloth and applying the raw materials to the lower casing and the carrier to a thickness of 40 mm.

S3, molding the upper casing by using the upper mold: the upper mold is corresponding to the lower mold, the molding surface of the upper mold is in contact with the product surface of the lower casing, and the raw material is painted on the molding surface of the upper mold; and the raw material is painted A reinforced cloth is placed on the surface of the rear upper mold to discharge the air bubbles in the reinforcing cloth and the raw material; after a period of time, the raw material is evenly spread on the reinforcing cloth again. Repeat the steps of laying the reinforced cloth and applying the raw materials to the upper casing to a thickness of 50 mm.

S4, curing and demoulding: ribs are arranged at positions where the lower casing and the upper casing are in contact with each other, and then solidified; after a period of time, the upper and lower dies are respectively separated from the solidified base; after molding The lower casing has a plurality of grouting holes in the circumferential direction, and the grouting holes communicate with the inner space of the lower casing.

In this embodiment, the reinforcing cloth is a glass mat.

In this embodiment, an additive is added to the raw material, and the additive is a curing agent, a promoter, and a pigment paste mixed in a certain ratio.

A base structure adopting the above manufacturing process, as shown in FIG. 2-3, includes: an upper casing 1, a lower casing 2, and a carrier plate 3.

The upper casing 1 has a cylindrical structure, and a fixing plate 11 for connecting a cylinder body (not shown) is disposed at a position of the inner side of the upper casing 1 near the bottom. The fixing plate 11 is annular, and the upper casing 1 is An adhesive is provided at a position connected to the cylinder to ensure a sealed connection between the cylinder and the upper casing 1.

The lower casing 2 has a truncated cone structure with a small upper end and a large lower end. The inner portion of the lower casing 2 is hollow, and is provided with a grouting hole 21, and the grouting hole 21 communicates with the inside of the lower casing 2; the number of grouting holes 21 is 12 They are spaced apart in the circumferential direction of the lower casing 2; ribs 22 are provided on the outer edge of the bottom of the lower casing 2. A reinforcing rib (not shown) is provided at a position where the upper casing 1 and the lower casing 2 are connected.

The carrier plate 3 is disposed between the upper casing 1 and the lower casing 2, and the carrier plate 3 includes a first drainage plate 31, a mounting plate 32, a groove 33, and a second drainage plate 34, which are sequentially connected, wherein the mounting plate 32 is horizontally arranged for mounting the sewage pump, the top end of the first drainage plate 31 is connected to the lower casing 2, and the top end of the second drainage plate is connected to the lower casing 2. The inclination angle of the first drainage plate 31 with respect to the mounting plate 32 is 20°, the inclination angle of the second drainage plate 34 with respect to the mounting plate 32 is 8°, and the depth of the groove 33 is 160 mm, and the groove 33 and the second drainage plate 34 are The connected locations are provided with curved faces 35 to facilitate the entry of sewage into the grooves.

In this embodiment, the sediment entering the pumping station is rapidly flowed to the groove at the inlet of the sewage pump by the gravity of the first drainage plate and the second drainage plate, thereby achieving complete sedimentation. discharge.

The base in the embodiment is designed as a self-cleaning structure, which is convenient for quickly discharging the sewage mixture; the base has high strength and good adaptability, and improves the overall sewage discharge performance of the pump station.

While the invention has been described above in the preferred embodiments, it is not intended to limit the scope of the invention. Any improvement that may be made in accordance with the invention within the scope of the invention is intended to be included within the scope of the invention.

Claims (10)

A manufacturing process of an integrated prefabricated pump station base, the base comprising: an upper casing and a lower casing, wherein a carrier plate is disposed between the upper casing and the lower casing; wherein the manufacturing process comprises The following steps: S1, pre-processing the mold: the mold comprises a lower mold and an upper mold, the lower mold is used for molding the lower casing and the carrier, and the upper mold is used for molding the upper casing; Applying a release agent to the molding surface of the upper mold and the lower mold; S2, molding the lower casing and the carrier plate by using a lower mold: uniformly coating the raw material on the molding surface of the lower mold; S3, molding the upper casing by using an upper die: the upper die is disposed corresponding to the lower die, and a molding surface of the upper die is in contact with a product surface of the lower casing, and the raw material is coated on the The forming surface of the upper mold; S4. Curing and demolding: respectively separating the upper mold and the lower mold from the solidified base. The manufacturing process of claim 1 wherein said step S2 further comprises the step S21: A reinforcing cloth is laid on the molding surface of the lower mold after the raw material is applied. The manufacturing process according to claim 2, wherein said reinforcing cloth is impregnated into the raw material in said step S21, and said reinforcing cloth and air bubbles in said raw material are discharged. The manufacturing process according to claim 3, wherein said step S2 further comprises the step S22 of uniformly applying a raw material to said reinforcing cloth. The manufacturing process according to claim 4, wherein the raw material thickness between adjacent reinforcing cloths is the same. The manufacturing process according to claim 5, wherein the steps S21 and S22 are repeated until the base reaches a predetermined thickness, and the predetermined thickness is 30 mm to 40 mm. The manufacturing process according to claim 1, wherein the step S2 and the step S3 each comprise the step of adding an additive to the raw material: the additive comprises a curing agent, an accelerator, and a pigment paste. The manufacturing process of claim 1 wherein said step S4 further comprises the step S41: A reinforcing rib is provided at a position where the lower casing and the upper casing are in contact with each other. The manufacturing process of claim 1 wherein said step S4 further comprises the step S42: Open grouting hole: a plurality of grouting holes are opened in a circumferential direction of the lower casing, and the grouting holes communicate with an inner space of the lower casing. The manufacturing process of claim 2 wherein said reinforcing cloth is a glass mat.

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