Spiral squeezing and filtering equipment for sewage treatment

Abstract

The utility model discloses spiral squeezing and filtering equipment for sewage treatment, which comprises a rack, a spiral squeezing and filtering mechanism and an auxiliary squeezing mechanism are arranged at the upper end of the rack, the auxiliary squeezing mechanism is connected with the spiral squeezing and filtering mechanism through a guide hopper, and the auxiliary squeezing mechanism comprises a shifting base, a feeding hopper and a squeezing base. A material stirring assembly is arranged in the material stirring base, an air cylinder and an electric cylinder are arranged on one side face of the extrusion base, one end of the air cylinder is connected with an extrusion plate, a net plate and a liquid collecting box are arranged on the other side face of the extrusion base, and a push-pull plate is arranged at the bottom of the extrusion base in a sliding mode. The auxiliary extrusion mechanism is additionally arranged on the upper portion of the spiral squeezing and filtering mechanism, kitchen garbage is primarily extruded and dehydrated by the auxiliary extrusion mechanism and then enters the spiral squeezing and filtering mechanism to be spirally squeezed and filtered, and the treatment quality of the kitchen garbage is improved through two times of extrusion, filtration and dehydration. And liquid components contained in the solid waste are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen waste treatment, in particular to a spiral squeezing and filtering device for sewage treatment. Background Technique

[0002] Currently, urban garbage can be mainly divided into several categories such as industrial waste, domestic waste, fruit and vegetable waste, and kitchen waste. Among them, fruit and vegetable waste and kitchen waste are two categories with a very large proportion. Their main characteristics are high water content, large volume, and high transportation costs; a large amount of organic matter, high utilization value, but also easy to rot and deteriorate, polluting the environment. The reduction treatment technology of kitchen waste mainly focuses on reducing the volume or weight of the waste. The volume reduction is mainly achieved by crushing the waste to reduce its volume, and the weight reduction is achieved by squeezing out the liquid components in the waste.

[0003] The existing reduction treatment methods for kitchen waste mostly use a spiral squeezing and filtering device to squeeze and filter the waste, squeezing out the liquid components in the waste. During the waste treatment process, only one-time squeezing is performed through the spiral shaft, which will result in a certain amount of liquid components still remaining in the discharged solid waste. Content of the Utility Model

[0004] The purpose of the utility model is to provide a spiral squeezing and filtering device for sewage treatment to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A spiral squeezing and filtering device for sewage treatment, including a frame. A spiral squeezing and filtering mechanism and an auxiliary squeezing mechanism are arranged at the upper end of the frame. The auxiliary squeezing mechanism and the spiral squeezing and filtering mechanism are connected by a feeding hopper. The auxiliary squeezing mechanism includes a feeding base, a feeding hopper, and an extrusion base. A feeding component is arranged inside the feeding base. A cylinder and an electric cylinder are arranged on one side surface of the extrusion base. One end of the cylinder is connected to an extrusion plate. A mesh plate and a liquid collecting box are arranged on the other side surface of the extrusion base. A push-pull plate is slidably arranged at the bottom of the extrusion base.

[0006] Wherein, a driving arm is welded and fixed to one side edge of the push-pull plate, and one end of the electric cylinder is fixedly connected to the driving arm.

[0007] Wherein, the feeding component includes a rotating roller, feeding blades, and a stepping motor. The output shaft of the stepping motor is fixedly connected to the rotating roller through a coupling. Multiple groups of the feeding blades are welded and fixed on the rotating roller, and multiple groups of the feeding blades are evenly distributed at intervals along the circumferential direction of the rotating roller.

[0008] Wherein, the spiral squeezing and filtering mechanism includes a filtering cylinder and a motor reducer. One end of the feeding hopper is connected to the extrusion base of the auxiliary squeezing mechanism, and the other end of the feeding hopper extends into the filtering cylinder.

[0009] Among them, the output shaft of the motor reducer is connected to the spiral shaft, the spiral shaft is located inside the filter cylinder, and spiral blades are fixedly welded on the spiral shaft.

[0010] Among them, a filter screen is arranged at the lower end of the filter cylinder, the filter screen is connected to the liquid collecting hopper, and the liquid collecting hopper is connected to the first drain pipe.

[0011] Among them, the end of the filter cylinder is connected to the slag discharge pipe.

[0012] Among them, one end of the spiral shaft is connected to the frame through a bearing seat.

[0013] Among them, a second drain pipe is arranged at the lower end of the liquid collecting tank.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] An auxiliary extrusion mechanism is added to the upper part of the screw squeezing and filtering mechanism of the present utility model. The kitchen waste first enters the inside of the auxiliary extrusion mechanism and is preliminarily squeezed and dehydrated by the auxiliary extrusion mechanism, and then enters the inside of the screw squeezing and filtering mechanism for screw squeezing and filtering. The treatment quality of the kitchen waste is improved through two-stage extrusion and filtration dehydration, and the liquid component contained in the solid waste is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the overall structural schematic diagram of the present utility model;

[0017] Figure 2 is the internal structural schematic diagram of one side view of the auxiliary extrusion mechanism of the present utility model;

[0018] Figure 3 is the internal structural schematic diagram of the other side view of the auxiliary extrusion mechanism of the present utility model;

[0019] Figure 4 is the structural schematic diagram of the material distributing component of the present utility model.

[0020] In the figure: 1, frame; 2, screw squeezing and filtering mechanism; 3, auxiliary extrusion mechanism; 4, material guiding hopper; 21, filter cylinder; 22, motor reducer; 23, spiral shaft; 24, bearing seat; 25, spiral blade; 26, filter screen; 27, liquid collecting hopper; 28, slag discharge pipe; 29, first drain pipe; 31, material distributing base; 32, feed hopper; 33, extrusion base; 34, material distributing component; 331, cylinder; 332, extrusion plate; 333, mesh plate; 334, liquid collecting tank; 335, push-pull plate; 336, electric cylinder; 337, driving arm; 338, second drain pipe; 341, roller; 342, material distributing piece; 343, stepping motor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-4 , the present utility model provides a technical solution: a spiral squeezing and filtering device for sewage treatment, including a frame 1. A spiral squeezing and filtering mechanism 2 and an auxiliary squeezing mechanism 3 are arranged at the upper end of the frame 1. The auxiliary squeezing mechanism 3 is connected to the spiral squeezing and filtering mechanism 2 through a feeding hopper 4. The auxiliary squeezing mechanism 3 includes a material distributing base 31, a feeding hopper 32 and a squeezing base 33. A material distributing component 34 is arranged inside the material distributing base 31. A cylinder 331 and an electric cylinder 336 are arranged on one side surface of the squeezing base 33. One end of the cylinder 331 is connected to a squeezing plate 332. A screen plate 333 and a liquid collecting box 334 are arranged on the other side surface of the squeezing base 33. A push-pull plate 335 is slidably arranged at the bottom of the squeezing base 33.

[0023] An auxiliary squeezing mechanism 3 is added to the upper part of the spiral squeezing and filtering mechanism 2. Kitchen waste first enters the inside of the auxiliary squeezing mechanism 3 and is preliminarily squeezed and dehydrated by the auxiliary squeezing mechanism 3, and then enters the inside of the spiral squeezing and filtering mechanism 2 for spiral squeezing and filtering. The treatment quality of kitchen waste is improved through two-stage squeezing and filtering dehydration, and the liquid component contained in solid waste is reduced.

[0024] The waste first enters the feeding hopper 32 of the auxiliary squeezing mechanism 3, which is located above the material distributing component 34. Each time the material distributing component 34 rotates during operation, it will distribute part of the waste, and a fixed amount of waste is distributed into the squeezing base 33. The cylinder 331 works to drive the squeezing plate 332 at its one end, and the waste is squeezed by the squeezing plate 332 and the inner wall on one side of the squeezing base 33. The squeezed liquid passes through the screen plate 333 and enters the liquid collecting box 334 for discharge, while the solid waste is retained in the squeezing base 33.

[0025] Wherein, a driving arm 337 is fixedly welded to one side edge of the push-pull plate 335, and one end of the electric cylinder 336 is fixedly connected to the driving arm 337.

[0026] After the waste is preliminarily squeezed, the electric cylinder 336 works, and drives the push-pull plate 335 to slide along the bottom of the squeezing base 33 through the driving arm 337, opening the bottom opening of the squeezing base 33. The solid waste enters the feeding hopper 4 through the bottom opening, and then falls into the filtering cylinder 21 of the spiral squeezing and filtering mechanism 2 through the feeding hopper 4.

[0027] Among them, the material feeding component 34 includes a rotating roller 341, material feeding blades 342 and a stepping motor 343. The output shaft of the stepping motor 343 is fixedly connected to the rotating roller 341 through a coupling. Multiple groups of material feeding blades 342 are all welded and fixed on the rotating roller 341, and multiple groups of material feeding blades 342 are evenly distributed at intervals along the circumferential direction of the rotating roller 341.

[0028] When the stepping motor 343 works, it drives the rotating roller 341 to rotate. The rotating roller 341 drives multiple groups of material feeding blades 342 fixed thereto to rotate synchronously. When the multiple groups of material feeding blades 342 rotate, the garbage located in the upper part is dialed into the extrusion base 33. The amount of garbage dialed is controlled by the number of rotation circles of the stepping motor 343, so as to convey a fixed amount of garbage into the interior of the extrusion base 33 to prepare for preliminary extrusion.

[0029] Among them, the spiral squeezing and filtering mechanism 2 includes a filtering cylinder 21 and a motor reducer 22. One end of the material guiding hopper 4 is connected to the extrusion base 33 of the auxiliary extrusion mechanism 3, and the other end of the material guiding hopper 4 extends into the filtering cylinder 21. The garbage extruded by the extrusion base 33 enters the material guiding hopper 4 and then enters the filtering cylinder 21 of the spiral squeezing and filtering mechanism 2 through the material guiding hopper 4.

[0030] Among them, the output shaft of the motor reducer 22 is connected to a spiral shaft 23. The spiral shaft 23 is located inside the filtering cylinder 21. Spiral blades 25 are welded and fixed on the spiral shaft 23. When the motor reducer 22 works, it drives the spiral shaft 23 at one end thereof to rotate. The spiral shaft 23 drives the spiral blades 25 to rotate synchronously. When the spiral shaft 23 and the spiral blades 25 rotate, they push and squeeze the garbage to squeeze out the liquid in the garbage.

[0031] Among them, a filter screen 26 is arranged at the lower end of the filtering cylinder 21. The filter screen 26 is connected to a liquid collecting hopper 27. The liquid collecting hopper 27 is connected to a first liquid discharge pipe 29. The liquid squeezed out by the spiral shaft 23 and the spiral blades 25 passes through the filter screen 26 and enters the liquid collecting hopper 27, is centrally collected by the liquid collecting hopper 27, and finally is discharged through the first liquid discharge pipe 29. The fixed garbage is retained inside the filtering cylinder 21 and continues to be pushed by the spiral shaft 23 and the spiral blades 25.

[0032] Among them, the end of the filtering cylinder 21 is connected to a slag discharge pipe 28. Finally, the solid garbage after extrusion is pushed into the slag discharge pipe 28 and discharged through the slag discharge pipe 28, realizing the spiral squeezing and filtering of kitchen waste.

[0033] Among them, one end of the spiral shaft 23 is connected to the frame 1 through a bearing seat 24, and the spiral shaft 23 is supported by the bearing seat 24.

[0034] Among them, a second liquid discharge pipe 338 is arranged at the lower end of the liquid collecting tank 334. The liquid entering the liquid collecting tank 334 is discharged through the second liquid discharge pipe 338.

[0035] Working principle: when in use, the kitchen waste first enters the feed hopper 32 of the auxiliary extrusion mechanism 3, which is located at the upper part of the material-dispensing assembly 34. Each time the material-dispensing assembly 34 rotates, it will dispense part of the waste and dispense a certain amount of waste into the extrusion base 33. The cylinder 331 works to drive the extrusion plate 332 at one end thereof, and the waste is squeezed through the extrusion plate 332 and the inner wall of one side of the extrusion base 33. After the extrusion, the waste is reset. The squeezed liquid passes through the mesh plate 333 into the liquid collecting box 334 and is discharged through the second liquid discharge pipe 338. The solid waste is trapped in the extrusion base 33. The electric cylinder 336 works to drive the push-pull plate 335 to slide along the bottom of the extrusion base 33 through the driving arm 337, thereby opening the bottom opening of the extrusion base 33 and discharging the solid waste. It enters the guide hopper 4 through the bottom opening, and then falls into the filter cylinder 21 of the spiral pressing and filtering mechanism 2 through the guide hopper 4. When the motor reducer 22 is working, it drives the spiral shaft 23 at one end thereof to rotate, and the spiral shaft 23 drives the spiral blades 25 to rotate synchronously. When the spiral shaft 23 and the spiral blades 25 rotate, the garbage is pushed and squeezed, and the liquid in the garbage is squeezed out. The liquid squeezed out by the spiral shaft 23 and the spiral blades 25 passes through the filter net 26 and enters the liquid collecting bucket 27, and is collected by the liquid collecting bucket 27, and finally discharged through the first liquid discharge pipe 29. The fixed garbage is trapped in the filter cylinder 21 and continues to be pushed by the spiral shaft 23 and the spiral blades 25. Finally, the solid garbage after squeezing is pushed to the slag discharge pipe 28 and discharged through the slag discharge pipe 28.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A screw filter press for sewage treatment, comprising a frame (1), characterized in that: A screw pressing and filtering mechanism (2) and an auxiliary extrusion mechanism (3) are arranged at the upper end of the frame (1); the auxiliary extrusion mechanism (3) is connected to the screw pressing and filtering mechanism (2) via a material guide hopper (4); the auxiliary extrusion mechanism (3) comprises a material shifting base (31), a material feed hopper (32) and an extrusion base (33); the material shifting base (31) has a material shifting assembly (34) built therein; a cylinder (331) and an electric cylinder (336) are arranged on one side surface of the extrusion base (33); one end of the cylinder (331) is connected to an extrusion plate (332); a mesh plate (333) and a liquid collecting box (334) are arranged on the other side surface of the extrusion base (33); and a push-pull plate (335) is slidably arranged at the bottom of the extrusion base (33).

2. The spiral filter press equipment for sewage treatment according to claim 1, characterized in that: A driving arm (337) is welded and fixed to one side of the push-pull plate (335), and one end of the electric cylinder (336) is fixedly connected to the driving arm (337).

3. The spiral filter press equipment for sewage treatment according to claim 1, characterized in that: The material shifting assembly (34) comprises a rotating roller (341), a material shifting sheet (342) and a stepping motor (343); the output shaft of the stepping motor (343) is fixedly connected to the rotating roller (341) via a coupling; a plurality of groups of the material shifting sheets (342) are welded and fixed on the rotating roller (341); and the plurality of groups of the material shifting sheets (342) are evenly spaced and distributed along the circumferential direction of the rotating roller (341).

4. The spiral filter press equipment for sewage treatment according to claim 1, characterized in that: The spiral pressing and filtering mechanism (2) comprises a filter cartridge (21) and a motor reducer (22); one end of the guide hopper (4) is connected to an extrusion base (33) of the auxiliary extrusion mechanism (3); and the other end of the guide hopper (4) extends into the filter cartridge (21).

5. The spiral filter press equipment for sewage treatment according to claim 4, characterized in that: The output shaft of the motor reducer (22) is connected to a spiral shaft (23), the spiral shaft (23) is located inside the filter cartridge (21), and a spiral blade (25) is welded and fixed on the spiral shaft (23).

6. The spiral filter press equipment for sewage treatment according to claim 5, characterized in that: A filter screen (26) is provided at the lower end of the filter cylinder (21), the filter screen (26) is connected to a liquid collecting hopper (27), and the liquid collecting hopper (27) is connected to a first liquid drain pipe (29).

7. The spiral filter press equipment for sewage treatment according to claim 6, characterized in that: The end of the filter cylinder (21) is connected to a slag discharge pipe (28).

8. The spiral filter press equipment for sewage treatment according to claim 7, characterized in that: One end of the screw shaft (23) is connected to the frame (1) via a bearing seat (24).

9. The spiral filter press equipment for sewage treatment according to claim 1, characterized in that: A second liquid drain pipe (338) is provided at the lower end of the liquid collecting tank (334).

Images