CN204699509U - A kind of screw sieving thickener - Google Patents

Abstract

The utility model discloses a spiral screening concentrator, which is composed of a discharge support, a liquid collection shell, a reinforced steel mesh, a filter cloth, a drum sieve, a spiral separation paddle, a transmission shaft, a motor reducer, and a feed support. Seat composition. A discharge port is set on the discharge support; a motor reducer support and a pulp inlet are arranged on the feed support; the motor reducer is connected with the transmission shaft, and the surface of the transmission shaft has a helical separation paddle with a pitch from large to small. leaves; the drum screen is fixed on the feed support and discharge support, and the filter cloth is wrapped on the surface of the drum screen under the action of the reinforced steel mesh to form a solid-liquid separation filtration system; the bottom of the liquid collection shell is provided with a liquid discharge port . Sieve holes are arranged on the surface of the drum sieve. The pitch of the propeller blades is from large to small, and the straight section to the cone section of the drum screen is used together with the mesh filter cloth filter system to realize the solid-liquid separation of mud pressurization extrusion, which can continuously feed and discharge materials, and the solid-liquid separation time is short, which is suitable for It is used in the continuous, efficient and rapid concentration and separation of mud in the mineral processing process and sewage sludge treatment process.

Description

A spiral screening concentrator

technical field

The utility model relates to a spiral screening concentrator, in particular to a device for concentrating and separating mud in mineral processing technology and sewage sludge treatment technology.

Background technique

With the concentration of slurry in the mineral processing process, the treatment of industrial wastewater and sludge, etc., the solid particle size in the slurry of the concentrated separation equipment is required to be finer and finer, and the filtrate is required to have high clarity and filter residue. Low moisture content, solids Liquid separation equipment technology is facing unprecedented challenges. According to the three methods of sedimentation, filtration, and centrifugation in the concentration and separation process, the concentration and separation equipment includes: the first type of sedimentation relies on the action of external force, and uses the density difference between the dispersed substance (solid phase) and the dispersion medium (liquid phase) to make it happen. Relative movement, and realize the thickener of the concentration and separation process; the second filter type uses a certain porous material as the medium, and under the action of external force, the fluid in the suspension passes through the medium pores, while the solid particles are trapped, thus realizing Concentration and separation process filter press; the third type of centrifugal centrifugal dehydrator uses the inertial centrifugal force provided by the device to realize the concentration and separation process. These three types of equipment have corresponding deficiencies in the application process. The vertical thickener has a long settling time and occupies a large area, the filter press has a long unloading cycle and cannot be continuously produced, and the centrifuge rotates at a high speed and consumes a lot of power.

Utility model content

The purpose of the utility model is to provide a fast, continuous and high-efficiency spiral screening concentrator for concentration and separation of mud in mineral processing technology and sewage sludge treatment technology.

The utility model is composed of a discharge support, a liquid collection shell, a reinforced steel mesh, a filter cloth, a drum sieve, a spiral separation paddle, a transmission shaft, a motor reducer, and a feed support. The discharge port is set on the discharge support; the motor reducer support and the pulp inlet are arranged on the feed support; the motor reducer is installed on the motor reducer support and connected with the drive shaft, and the drive shaft passes through Bearings and sealing rings are installed on the feed support and discharge support, and the surface of the transmission shaft has spiral separation paddles with pitches from large to small; the drum screen is fixed on the feed support and discharge support through flanges at both ends On the top, the filter cloth is wrapped on the surface of the drum screen under the action of the reinforced steel mesh to form a solid-liquid separation filtration system; the lower shell of the liquid collection shell is fixed on the feed support and the discharge support through a semicircular flange, and the upper The casing is movably installed on the lower casing, and a liquid discharge port is arranged at the bottom of the lower casing.

The trommel screen is composed of a straight-section steady-flow separation zone and a cone-section pressurized separation zone, and screen holes are arranged on the surface of the trommel screen.

The working process of the utility model:

The mud enters the trommel through the inlet of the feeding support. Driven by the motor reducer, the transmission shaft drives the spiral separation blades to rotate. Since the pitch of the spiral separation blades changes from large to small, the mud extrusion process is realized, and the mud passes through the screen. Holes, filter cloth and reinforced steel mesh filter liquid flows into the liquid collection shell, and is discharged from the liquid discharge port. The solid particles intercepted by the filter structure are pushed along the steady flow separation area to the pressurized separation area under the push of the propeller blades , to reach the outlet of the discharge support and discharge.

Beneficial effects of the utility model: when the screw pitch of the propeller blade changes from large to small and the straight section to the cone section of the drum sieve is used to cooperate with the mesh filter cloth filter system, the solid-liquid separation of mud pressurization and extrusion can be realized, and the continuous feeding and discharging work can be realized. , The solid-liquid separation time is short, the land occupation is small, and the power consumption is less than that of centrifugal separation equipment. It is suitable for continuous, efficient and rapid concentration and separation of mud in mineral processing technology and sewage sludge treatment technology.

Description of drawings

Fig. 1 is a schematic diagram of the internal structure of the utility model.

Fig. 2 is a schematic structural diagram of the liquid collection shell of the present invention.

1—discharging support; 2—liquid collection shell; 3—reinforced steel mesh; 4—filter cloth; 5—drum screen; 6—screw separation paddle; 7—drive shaft; Feeding support; 11—outlet; 12—bearing; 13—sealing ring; 21—upper shell; 22—lower shell; 23—drainage port; 24—semi-circular flange; 51—flange; 52 - screen hole; 91 - pulp inlet; 92 - motor reducer support.

Detailed ways

Please refer to Fig. 1 and Fig. 2, the utility model is composed of a discharge support 1, a liquid collection shell 2, a reinforced steel mesh 3, a filter cloth 4, a trommel 5, a spiral separation paddle 6, a drive shaft 7, The motor reducer 8 and the feed support 9 are formed, and the discharge support 1 is provided with a discharge port 11; the feed support 9 is arranged with a motor reducer support 92 and a slurry inlet 91; the motor The reducer 8 is installed on the motor reducer support 92 and connected with the transmission shaft 7, the transmission shaft 7 is installed on the feed support 9 and the discharge support 1 through the bearing 12 and the sealing ring 13, and the surface of the drive shaft 7 is provided with a pitch The blades 6 are separated by spirals from large to small; the trommel 5 is fixed on the feed support 9 and the discharge support 1 through the flanges 51 at both ends, and the filter cloth 4 is wrapped on the trommel under the action of the reinforced steel mesh 3 The surface of 5 forms a solid-liquid separation filtration system; the lower shell 22 of the liquid collection shell 2 is fixed on the feed support 9 and the discharge support 1 through a semicircular flange 24, and the upper shell of the liquid collection shell 2 21 is movably installed on the lower casing 22, and the bottom of the lower casing 22 is provided with a liquid discharge port 23.

The trommel 5 is composed of a straight-section steady-flow separation zone and a cone-section pressurized separation zone, and sieve holes 52 are arranged on the surface of the trommel.

Working process of the present utility model:

The mud enters the trommel 5 through the slurry inlet 91 of the feed support 9. Driven by the motor reducer 8, the transmission shaft 7 drives the screw separation blade 6 to rotate. Since the pitch of the separation screw blade 6 changes from large to small, the During the mud extrusion process, the mud passes through the sieve hole 52, the filter cloth 4 and the reinforced steel mesh 3 to filter the liquid into the liquid collection shell 2, and is discharged from the liquid discharge port 23. Pushed by 6, it advances along the steady flow separation area to the pressurized separation area, and reaches the discharge port 11 of the discharge support 1 to be discharged.

Claims (2)

1. A spiral screening concentrator, characterized in that: it is composed of a discharge support (1), a liquid collection shell (2), a reinforced steel mesh (3), a filter cloth (4), and a trommel screen (5) , spiral separation paddle (6), transmission shaft (7), motor reducer (8), feed support (9), and the discharge port (11) is set on the discharge support (1); A motor reducer support (92) and a pulp inlet (91) are arranged on the material support (9); the motor reducer (8) is installed on the motor reducer support (92) and the transmission shaft (7) connection, the transmission shaft (7) is installed on the feed support (9) and the discharge support (1) through the bearing (12) and the sealing ring (13), and the surface of the transmission shaft (7) has pitches from large to small. The spiral separation paddle (6); the trommel screen (5) is fixed on the feed support (9) and the discharge support (1) through the flanges (51) at both ends, and the filter cloth (4) is placed on the reinforced steel mesh ( 3) wrapped on the surface of the trommel screen (5) to form a solid-liquid separation filtration system; the lower shell (22) of the liquid collection shell (2) is fixed on the feed support ( 9) On the discharge support (1), the upper casing (21) of the liquid collection casing (2) is movably installed on the lower casing (22), and the bottom of the lower casing (22) is provided with a liquid discharge port (23) . 2. A kind of spiral screening thickener according to claim 1, it is characterized in that: described trommel (5) is made of straight section steady flow separation zone and conical section supercharging separation zone, and the surface of trommel screen is arranged sieve hole ( 52).