Impurity removal device for fermentation tank

Abstract

The utility model provides an impurity removal device for a fermentation tank, which comprises a tank body, a slag collecting hopper is arranged at the bottom of the tank body, a gate valve is arranged between the slag collecting hopper and the tank body, and a presser is arranged at the bottom of the slag collecting hopper; a sliding pressing plate is arranged in the tank body, an upper cover is fixedly arranged at the top of the tank body, a pushing mechanism is arranged in the middle of the upper cover, the end of a piston rod of the pushing mechanism is fixed to the pressing plate, a plurality of through holes are formed in the pressing plate, and the pressing plate abuts against a valve plate in the gate valve in a sliding mode. The problem of environmental pollution can be effectively solved, the resource utilization rate is increased, and agricultural sustainable development is promoted. Through the design, fermented solid residues can be treated more efficiently, liquid in the solid residues can be extracted, environmental pollution is reduced, and the device is particularly suitable for waste treatment and organic fertilizer production of large-scale pig farms.

Description

Technical Field

[0001] The utility model relates to the field of fertilizer fermentation, and particularly relates to an impurity removal device for a fermentation tank. Background Technique

[0002] At present, the treatment methods of pig manure mainly include the following: Direct discharge: discharging untreated pig manure directly into the environment. This method not only pollutes water sources and soil, but also emits a foul smell, seriously affecting the living quality of surrounding residents. Composting: mixing pig manure with other organic substances and converting it into organic fertilizer through the natural fermentation process. Although this method can partially solve the environmental pollution problem, the fermentation cycle is long, the floor area is large, and the treatment efficiency is low. Anaerobic digestion: converting pig manure into biogas and biolymph through anaerobic fermentation. The biogas can be used for power generation, and the biolymph can be used as liquid fertilizer. However, the investment in anaerobic digestion equipment is high, and the maintenance cost is also high, which is not suitable for pig farms of all scales.

[0003] When using pig manure for fermentation to produce fertilizer, there are many solid residues in the pig manure, which affects the quality of the fertilizer. Content of the Utility Model

[0004] The main purpose of the utility model is to provide an impurity removal device for a fermentation tank to solve the problems in the above background technique.

[0005] To solve the above technical problems, the technical solution adopted by the utility model is: including a tank body, a slag collection hopper is arranged at the bottom of the tank body, a knife gate valve is arranged between the slag collection hopper and the tank body, and a press is arranged at the bottom of the slag collection hopper;

[0006] A sliding pressing plate is arranged in the tank body, an upper cover is fixedly arranged at the top of the tank body, a top pushing mechanism is arranged in the middle of the upper cover, the end of the piston rod of the top pushing mechanism is fixed on the pressing plate, and a plurality of through holes are arranged on the pressing plate, and the pressing plate slides and abuts against the valve plate in the knife gate valve.

[0007] Preferably, a sliding valve plate is arranged in the knife gate valve, a fixed frame is fixedly arranged on one side of the knife gate valve, a rotating lead screw is arranged in the fixed frame, a connecting seat is fixedly arranged at the end of the valve plate, and the connecting seat is threadedly connected with the lead screw through a thread bush.

[0008] Preferably, a motor is fixedly arranged on the fixed frame, and the end of the output shaft of the motor is connected with the lead screw through a transmission mechanism;

[0009] Both ends of the lead screw are abutted against the fixed frame through bearings and rotate.

[0010] Preferably, one end of the upper part of the fixed cylinder in the press is communicated with the slag collection hopper, and a slag outlet is arranged at the lower part of the other end, and a hinged baffle is arranged at the slag outlet.

[0011] Preferably, a rotating conical screw is provided inside the fixed cylinder. Both ends of the conical screw are abutted against the inside of the fixed cylinder through bearings and rotate, and a driving unit is fixedly provided at one end of the fixed cylinder for driving the conical screw to rotate.

[0012] Preferably, a liquid receiving hopper is provided below the fixed cylinder, and a sieve plate is provided between the liquid receiving hopper and the conical screw.

[0013] Preferably, a feed inlet is provided at the top of the tank body, and a liquid outlet is provided at the bottom. The liquid outlet is located above the plug valve.

[0014] The utility model provides a fermentation tank impurity removal device, which solves the problems of low treatment efficiency, low resource utilization rate and serious environmental pollution existing in the traditional pig manure treatment method through efficient fermentation, automatic control, resource recovery and environmental protection design. The system is applicable to the waste treatment and organic fertilizer production of large-scale pig farms, can effectively improve the resource utilization rate, reduce environmental pollution and promote the sustainable development of agriculture. Through this design, the fermented solid residue can be processed more efficiently, the liquid therein can be extracted, the resource utilization rate can be improved, and environmental pollution can be reduced, which is particularly suitable for the waste treatment and organic fertilizer production of large-scale pig farms. Brief Description of the Drawings

[0015] The following further illustrates the utility model in conjunction with the drawings and embodiments:

[0016] Figure 1 is the front view of the overall structure of the utility model;

[0017] Figure 2 is the front sectional view of the overall structure of the utility model;

[0018] Figure 3 is the front sectional view of the press of the utility model;

[0019] In the figure: tank body 1; upper cover 2; top pushing mechanism 3; feed inlet 4; liquid outlet 5; plug valve 6; valve plate 601; fixed frame 602; lead screw 603; connecting seat 604; motor 605; slag collecting hopper 7; press 8; fixed cylinder 801; conical screw 802; liquid receiving hopper 803; slag outlet 804; driving unit 805; sieve plate 806; pressing plate 9. Detailed Description of the Preferred Embodiments

[0020] As Figures 1 to 3 shown, a fermentation tank impurity removal device includes a tank body 1, a slag collecting hopper 7 is provided at the bottom of the tank body 1, a plug valve 6 is provided between the slag collecting hopper 7 and the tank body 1, and a press 8 is provided at the bottom of the slag collecting hopper 7;

[0021] Inside the tank body 1, there is a sliding pressing plate 9. At the top of the tank body 1, there is a fixed upper cover 2. In the middle of the upper cover 2, there is a pushing mechanism 3. The end of the piston rod of the pushing mechanism 3 is fixed on the pressing plate 9. There are multiple through holes on the pressing plate 9. The pressing plate 9 slides and abuts against the valve plate 601 in the plug valve 6. Pig farm waste feces, water, and fermentation inoculant are introduced into the tank body 1 for temperature-controlled fermentation. After fermentation is completed, by driving the pressing plate 9 to move downward, the solid residue in the tank body 1 is compressed onto the valve plate 601. After discharging the liquid fertilizer, the plug valve 6 is opened so that the solid residue enters the press 8 through the slag collection hopper 7, and the liquid in the solid residue is squeezed out by the press 8.

[0022] Fermentation process: Mix pig farm waste, water, and fermentation inoculant and then introduce them into the tank body 1. Maintain an appropriate fermentation temperature, usually 25°C - 35°C, through the temperature control system to promote microbial activities and carry out fermentation. During the fermentation process, liquid fertilizer gradually forms, and solid residue deposits at the bottom of the tank body.

[0023] Separation process: After fermentation is completed, start the pushing mechanism 3 to move the pressing plate 9 downward. The pressing plate 9 compresses the solid residue in the tank body onto the valve plate 601 in the plug valve 6. Due to the through holes on the pressing plate 9, the liquid fertilizer can flow out through these through holes and enter the space below the tank body.

[0024] Liquid discharging process: The liquid fertilizer is discharged through the pipeline at the bottom of the tank body for subsequent dilution and application.

[0025] Residue discharging process: Open the plug valve 6, and the compressed solid residue enters the press 8 through the slag collection hopper 7. The press 8 further squeezes the solid residue to extract the remaining liquid in it. The squeezed solid residue can be further processed, such as made into solid organic fertilizer or used for other purposes.

[0026] Through the compression of the pressing plate 9, the liquid fertilizer and solid residue can be effectively separated, improving the separation efficiency. The automatic control of the pushing mechanism 3 and the plug valve 6 reduces manual intervention and improves production efficiency. Further extracting the liquid in the solid residue by the press 8 maximizes resource utilization and reduces waste. Effectively treating pig farm waste and reducing environmental pollution meet the requirements of sustainable development.

[0027] Preferably, there is a sliding valve plate 601 in the plug valve 6. On one side of the plug valve 6, there is a fixed frame 602. Inside the fixed frame 602, there is a rotating lead screw 603. At the end of the valve plate 601, there is a connecting seat 604. The connecting seat 604 is threadedly connected to the lead screw 603 through a nut sleeve. By rotating the lead screw 603, the valve plate 601 can be driven to move, thereby realizing the on-off between the tank body 1 and the slag collection hopper 7. The periphery of the valve plate 601 abuts against the inside of the plug valve 6 through a sealing ring to achieve sealing.

[0028] By rotating the lead screw 603, the rotation of the lead screw is transmitted to the connecting seat 604 through the lead screw sleeve, thereby driving the valve plate 601 to move along the slideway of the flap valve 6. When it is necessary to close the flap valve 6, rotate the lead screw 603 to move the valve plate 601 towards the closed position until the valve plate 601 completely covers the opening of the flap valve 6 to achieve sealing. When it is necessary to open the flap valve 6, rotate the lead screw 603 in the reverse direction to move the valve plate 601 towards the open position, exposing the opening of the flap valve 6 to achieve on-off control.

[0029] A sealing ring is installed on the peripheral side of the valve plate 601 to ensure the sealing performance between the valve plate 601 and the inner wall of the flap valve 6. The function of the sealing ring is to prevent the leakage of liquid or gas when the valve plate 601 is closed, ensuring the sealing and reliability of the system.

[0030] By rotating the lead screw 603, the position of the valve plate 601 can be accurately controlled to achieve the on-off between the tank body 1 and the slag collection hopper 7. The operation is simple and reliable. The sealing ring on the peripheral side of the valve plate 601 ensures good sealing performance, preventing the leakage of liquid or gas and ensuring the normal operation of the system. The design of the lead screw 603 and the lead screw sleeve makes the movement of the valve plate 601 stable, reduces wear, extends the service life, and is also convenient for maintenance and component replacement. The rotation of the lead screw 603 can be controlled by an electric or pneumatic drive device to achieve automatic control and further improve production efficiency.

[0031] Preferably, a motor 605 is fixedly installed on the fixing frame 602, and the end of the output shaft of the motor 605 is connected to the lead screw 603 through a transmission mechanism;

[0032] Both ends of the lead screw 603 are in contact with the fixing frame 602 through bearings and rotate. The motor 605 drives the lead screw 603 to rotate through a sprocket and a chain, which can drive the valve plate 601 to slide, thereby enabling the opening and closing of the flap valve 6.

[0033] After the motor 605 is started, it drives the lead screw 603 to rotate through a sprocket and chain transmission mechanism. The rotation of the lead screw 603 is transmitted to the connecting seat 604 through the lead screw sleeve, thereby driving the valve plate 601 to move along the slideway of the flap valve 6. When it is necessary to close the flap valve 6, the motor 605 rotates forward to move the valve plate 601 towards the closed position until the valve plate 601 completely covers the opening of the flap valve 6 to achieve sealing. When it is necessary to open the flap valve 6, the motor 605 rotates in reverse to move the valve plate 601 towards the open position, exposing the opening of the flap valve 6 to achieve on-off control.

[0034] A sealing ring is installed on the peripheral side of the valve plate 601 to ensure the sealing performance between the valve plate 601 and the inner wall of the flap valve 6. The function of the sealing ring is to prevent the leakage of liquid or gas when the valve plate 601 is closed, ensuring the sealing and reliability of the system.

[0035] Through the motor 605 and the transmission mechanism, the automatic control of the valve plate 601 is realized, improving the convenience and accuracy of operation. Remote control can be achieved through a control system such as PLC, further improving production efficiency and management level.

[0036] The precise control of the motor 605 makes the position of the valve plate 601 more accurate, ensuring a more reliable on-off between the tank body 1 and the slag collection hopper 7. The design of the lead screw 603 and the nut sleeve makes the movement of the valve plate 601 stable, reducing wear and extending the service life. At the same time, it is also convenient for maintenance and component replacement. The sprocket and chain design of the transmission mechanism is simple and reliable, facilitating inspection and maintenance. The sealing ring on the periphery of the valve plate 601 ensures good sealing performance, preventing liquid or gas leakage and ensuring the normal operation of the system.

[0037] Preferably, one end of the upper part of the fixed cylinder 801 in the press 8 is communicated with the slag collection hopper 7, and the lower part of the other end is provided with a slag outlet 804, and a hinged baffle is provided at the slag outlet 804. The solid residue falling from the slag collection hopper 7 enters the fixed cylinder 801 for full pressing of its liquid, and the solid is discharged from the slag outlet 804.

[0038] When the plug valve 6 is opened, the solid residue falls from the slag collection hopper 7 into the fixed cylinder 801. The pressing mechanism in the fixed cylinder 801 starts to work to press the solid residue. The pressing mechanism can be a screw propeller, which advances the solid residue forward by rotation while applying pressure to squeeze the liquid out of the solid residue. It can also be a hydraulic cylinder, which applies high pressure to the solid residue through a hydraulic system to force the liquid to flow out.

[0039] During the pressing process, the liquid is discharged through the pores or special drainage channels of the fixed cylinder 801 and collected in a designated container. The pressed solid residue is pushed to the slag outlet 804. The hinged baffle at the slag outlet 804 can be opened or closed as needed to control the discharge of the solid residue. When it is necessary to discharge the solid residue, the baffle is opened, and the solid residue is discharged from the slag outlet 804, and can be further processed or used as solid organic fertilizer.

[0040] Preferably, a rotating conical screw 802 is provided in the fixed cylinder 801. Both ends of the conical screw 802 are abutted against the inside of the fixed cylinder 801 through bearings and rotate. One end of the fixed cylinder 801 is fixedly provided with a driving unit 805, and the driving unit 805 is used to drive the conical screw 802 to rotate. The driving unit 805 is a motor reducer. By driving the conical screw 802 through the driving unit 805, the solid residue is driven to move in the fixed cylinder 801 for full pressing.

[0041] When the flap valve 6 is opened, the solid residue falls from the slag collection hopper 7 into the fixed cylinder 801. The drive unit 805 is activated to drive the conical screw 802 to rotate through the motor speed reducer. The rotation of the conical screw 802 pushes the solid residue forward, and at the same time, the gradually decreasing pitch exerts an increasing pressure on the solid residue, forcing the liquid to be extruded from the solid residue. The liquid is discharged through the pores of the fixed cylinder 801 or a dedicated drainage channel and collected into a designated container. The pressed solid residue is pushed to the slag outlet 804. The hinged baffle at the slag outlet 804 can be opened or closed as needed to control the discharge of the solid residue. When it is necessary to discharge the solid residue, the baffle is opened, and the solid residue is discharged from the slag outlet 804 and can be further processed or used as solid organic fertilizer.

[0042] The design of the conical screw 802 enables the pressing process to proceed step by step, and the gradually increasing pressure can extract the liquid in the solid residue more thoroughly, improving the yield and quality of the liquid fertilizer. The motor speed reducer of the drive unit 805 can be integrated with the control system to realize the automatic control of the entire pressing process and improve the production efficiency. The designs of the fixed cylinder 801 and the conical screw 802 are compact, occupying little space and being suitable for installation and use in a limited space. The designs of the conical screw 802 and the drive unit 805 are convenient for cleaning and maintenance, extending the service life of the equipment.

[0043] Preferably, a liquid receiving hopper 803 is provided below the fixed cylinder 801, and a sieve plate 806 is provided between the liquid receiving hopper 803 and the conical screw 802. The pressed liquid enters the liquid receiving hopper 803 through the sieve plate 806 for collection. It can process the fermented solid residue more efficiently, extract the liquid therein, improve the utilization rate of resources, reduce environmental pollution, and is particularly suitable for the waste treatment and organic fertilizer production of large-scale pig farms.

[0044] Preferably, a feed inlet 4 is provided at the top of the tank body 1, and a liquid outlet 5 is provided at the bottom. The liquid outlet 5 is located above the flap valve 6. It is located at the top of the tank body 1 and is used to add pig manure, water, and fermentation inoculant. A lid or valve can be equipped to prevent foreign impurities from entering the tank body 1. It is located at the bottom of the tank body 1, above the flap valve 6, and is used to discharge the liquid fertilizer. A valve can be equipped to control the discharge speed and time of the liquid fertilizer.

[0045] The above embodiments are only the preferred technical solutions of the present utility model and should not be regarded as limitations to the present utility model. The protection scope of the present utility model shall be the technical solutions recorded in the claims, including the equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, the equivalent replacement improvements within this scope are also within the protection scope of the present utility model.

Claims

1. An impurity removal device for a fermentation tank, characterized in that: It includes a tank body (1). A slag collection hopper (7) is provided at the bottom of the tank body (1). A sluice valve (6) is provided between the slag collection hopper (7) and the tank body (1). A press (8) is provided at the bottom of the slag collection hopper (7). A sliding pressing plate (9) is provided inside the tank body (1). An upper cover (2) is fixedly provided at the top of the tank body (1). A jacking mechanism (3) is provided in the middle of the upper cover (2). The end of the piston rod of the jacking mechanism (3) is fixed on the pressing plate (9). A plurality of through holes are provided on the pressing plate (9). The pressing plate (9) slides and abuts against the valve plate (601) in the sluice valve (6).

2. The impurity removal device for a fermenter according to claim 1, wherein: A sliding valve plate (601) is provided in the sluice valve (6). A fixed frame (602) is fixedly provided on one side of the sluice valve (6). A rotating lead screw (603) is provided inside the fixed frame (602). A connecting seat (604) is fixedly provided at the end of the valve plate (601). The connecting seat (604) is threadedly connected to the lead screw (603) through a nut sleeve.

3. The impurity removal device for a fermenter according to claim 2, characterized in that: A motor (605) is fixedly provided on the fixed frame (602). The end of the output shaft of the motor (605) is connected to the lead screw (603) through a transmission mechanism. Both ends of the lead screw (603) are abutted against the fixed frame (602) through bearings and rotate.

4. The impurity removal device for a fermentation tank according to claim 1, wherein: One upper end of a fixed cylinder (801) in the press (8) communicates with the slag collection hopper (7), and the other lower end is provided with a slag outlet (804). A hinged baffle is provided at the slag outlet (804).

5. The impurity removal device for a fermentation tank according to claim 4, wherein: A rotating conical screw (802) is provided inside the fixed cylinder (801). Both ends of the conical screw (802) are abutted against the inside of the fixed cylinder (801) through bearings and rotate. A driving unit (805) is fixedly provided at one end of the fixed cylinder (801). The driving unit (805) is used to drive the conical screw (802) to rotate.

6. The impurity removal device for a fermenter according to claim 5, characterized in that: A liquid receiving hopper (803) is provided below the fixed cylinder (801). A sieve plate (806) is provided between the liquid receiving hopper (803) and the conical screw (802).

7. The impurity removal device for a fermentation tank according to claim 1, characterized in that: An inlet (4) is provided at the top of the tank body (1), and an outlet (5) is provided at the bottom. The outlet (5) is provided above the sluice valve (6).

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