Cow dung colloid separation treatment equipment and method

Abstract

The invention relates to the technical field of cow dung colloid separation treatment, in particular to cow dung colloid separation treatment equipment and method.The cow dung colloid separation treatment equipment comprises a separation stirring tank, a stirring motor is installed on the separation stirring tank, and the output end of the stirring motor is connected with a stirring shaft; a plurality of groups of stirring blades are fixedly mounted on the stirring shaft, and a quartz sand storage tank, a zeolite powder filling port and a solution discharge port are formed in the bottom of the separation stirring tank. Efficient separation and multipurpose utilization of fibers, lignin and other organic matters in fresh cow dung are realized through a unique colloid breaking process and a layering treatment technology; therefore, the treatment efficiency is remarkably improved, the treatment cost is reduced, and the recycling requirement is met.

Description

Technical Field

[0001] The present invention relates to the technical field of cow dung colloid separation and treatment, and particularly to an apparatus and method for separating and treating cow dung colloid. Background Art

[0002] In the prior art for the treatment of cow dung, either the cow dung is dried and used as fuel for production by utilizing its calorific value, or the cow dung is dried and used for the production of organic fertilizer, but neither can solve the problems of treatment efficiency and benefit of cow dung.

[0003] Therefore, in the treatment process of fresh cow dung, whether using composting or similar composting as a substrate soil for greenhouse vegetables, the treatment efficiency of cow dung is relatively poor. In particular, how to separate the colloidal state of cow dung after mixing with water is a difficult problem in the current treatment of cow dung. Summary of the Invention

[0004] The present invention relates to the technical field of cow dung treatment, and particularly to an apparatus and method for separating and treating cow dung colloid.

[0005] The purpose of the present invention is to provide an apparatus and method for separating and treating cow dung colloid, which avoid the deficiencies of the prior art. Through a unique colloid breaking process and layered treatment technology, the efficient separation and multi-purpose utilization of fibers, lignin and other organic matters in fresh cow dung are realized, thereby significantly improving the treatment efficiency, reducing the treatment cost, and meeting the resource utilization requirements.

[0006] The above object of the present invention is achieved by the following technical means.

[0007] There is provided a method for separating and treating cow dung colloid, characterized by comprising the following steps:

[0008] S1: Pretreatment, passing fresh cow dung through a coarse grid trash rack, a ten-centimeter grid trash rack, a five-centimeter grid trash rack and a one-centimeter grid trash rack in sequence for grading and removing sundries;

[0009] S2: Slurry preparation, using a four-inch vertical rod pump to inject the pretreated cow dung into a cylindrical separation and stirring tank, injecting six cubic meters of cow dung and adding three cubic meters of water;

[0010] S3: Stirring and mixing, starting the separation stirrer to stir the cow dung slurry for 15 minutes, and injecting the fully mixed cow dung slurry into the cow dung slurry storage tank after mixing;

[0011] S4: Dry-wet separation, using a four-inch vertical rod pump to transport the slurry in the cow dung slurry storage tank to a dry-wet separator. The dry-wet separator adopts a drum-type screen structure and is equipped with a three-head screw machine, and sandpapers with 10 meshes, 80 meshes and 200 meshes are respectively set to form three groups of fiber components with different particle sizes;

[0012] S5: Sewage treatment. Inject the sewage after 200 - mesh screening into a special sewage pool, and purify it through the process of wrapping clay zeolite powder with black sand pipes. Every 20 groups of black sand pipes form a treatment unit, and 10 tons of purified water can be produced per hour.

[0013] S6: Resource utilization. Collect the separated fibers, lignin and other organic matters respectively for producing substrate soil, bio - fuel or high - value - added products.

[0014] The wet - dry separation in step S4 is specifically as follows:

[0015] S41: Primary separation. Pass the cow dung slurry through a 10 - mesh sieve to separate the coarse fiber component.

[0016] S42: Secondary separation. Pass the remaining slurry through an 80 - mesh sieve to separate the medium - sized fiber component.

[0017] S43: Tertiary separation. Pass the remaining slurry through a 200 - mesh sieve to separate the fine fiber component and sewage.

[0018] The sewage treatment in step S5 is specifically as follows:

[0019] S51: Sewage injection. Inject the sewage after 200 - mesh screening into a special sewage pool.

[0020] S52: Purification treatment. Purify the sewage through the process of wrapping clay zeolite powder with black sand pipes, and 10 tons of purified water are produced per hour.

[0021] S53: Impurity cleaning. Regularly clean the sediment and anion and cation residues in the black sand pipes.

[0022] Preferably, the stirring and mixing in step S3 is specifically as follows:

[0023] S31: Preliminary stirring. Start the separation mixer to stir the cow dung slurry for 5 minutes to make the cow dung and water be preliminarily mixed.

[0024] S32: Adding separation agents. Add quartz sand and zeolite powder into the stirring tank. Quartz sand is used to break the colloid bond of cow dung, and zeolite powder is used for the stratification of dissolved substances.

[0025] S33: Deep stirring. Continue to stir for 10 minutes to make the cow dung slurry form a stratified mixed solution with quartz sand, lignin, fiber solution and organic matter from bottom to top in turn.

[0026] S34: Discharging. Discharge the stratified mixed solution into the slurry storage tank for standby.

[0027] A cow dung colloid separation and treatment device includes a separation and stirring tank. A stirring motor is installed on the separation and stirring tank. The output end of the stirring motor is connected to a stirring shaft, and multiple groups of stirring blades are fixedly installed on the stirring shaft. A quartz sand storage tank, a zeolite powder filling port, and a solution discharge port are provided at the bottom of the separation and stirring tank.

[0028] Preferably, a layering detection device is provided inside the separation and stirring tank. The layering detection device includes multiple liquid level sensors, which are respectively located at different height positions of the separation and stirring tank and are used to monitor the interface positions of each layer of the layered mixed solution in real time.

[0029] Preferably, the layering detection device further includes a data processing module. The data processing module is electrically connected to the liquid level sensors and is used to analyze the interface positions of each layer and control the stirring time and the dosage of the separating agent.

[0030] Preferably, the device further includes a dry-wet separator assembly. The dry-wet separator assembly includes a drum sieve and a three-head screw machine. A detachable sand cloth layer is provided on the outer wall of the drum sieve, and the mesh numbers of the sand cloth layer are 10 mesh, 80 mesh, and 200 mesh respectively.

[0031] Specifically, the dry-wet separator assembly further includes an automatic cleaning device. The automatic cleaning device includes a high-pressure nozzle and a cleaning liquid storage tank. The high-pressure nozzle is installed above the drum sieve and is used to regularly clean the residues on the surface of the sieve.

[0032] Specifically, the device further includes a sewage purification unit. The sewage purification unit includes a wusha pipe and a zeolite powder filling layer. The outer wall of the wusha pipe is wrapped with a clay material, which is used to adsorb impurities and anions and cations in the sewage.

[0033] Specifically, the sewage purification unit further includes a flow monitoring device. The flow monitoring device is installed at the outlet end of the wusha pipe and is used to monitor the purified water flow in real time and adjust the purification process parameters.

[0034] Preferably, an exhaust port is provided at the top of the separation and stirring tank. The exhaust port is connected to a deodorizing device, and a probiotic deodorant is filled in the deodorizing device, which is used to remove the odor generated during the cow dung treatment process.

[0035] Through a unique colloid breaking process and layering treatment technology, the present invention realizes the efficient separation and multi-purpose utilization of fibers, lignin, and other organic matters in fresh cow dung, not only significantly improving the treatment efficiency, but also greatly reducing the treatment cost, while meeting the resource utilization requirements, and having significant economic and environmental benefits. Brief Description of the Drawings

[0036] The present invention is further described with the accompanying drawings, but the content in the drawings does not constitute any limitation to the present invention.

[0037] Figure 1It is a schematic diagram of the overall structure of a cow dung colloid separation and treatment device of the present invention.

[0038] Figure 2 It is a schematic diagram of the sewage purification unit structure of a cow dung colloid separation and treatment device of the present invention.

[0039] From Figures 1 to 2 it includes:

[0040] 1. Separation and stirring tank;

[0041] 2. Stirring motor;

[0042] 3. Stirring shaft;

[0043] 4. Stirring blades;

[0044] 5. Quartz sand storage tank;

[0045] 6. Zeolite powder filling port;

[0046] 7. Solution discharge port;

[0047] 8. Stratification detection device;

[0048] 9. Liquid level sensor;

[0049] 10. Data processing module;

[0050] 11. Dewatering machine assembly;

[0051] 12. Drum screen;

[0052] 13. Three-head screw machine;

[0053] 14. Abrasive cloth layer;

[0054] 15. Automatic cleaning device;

[0055] 16. High-pressure nozzle;

[0056] 17. Cleaning liquid storage tank;

[0057] 18. Sewage purification unit;

[0058] 19. Garnet pipe;

[0059] 20. Zeolite powder filling layer;

[0060] 21. Flow monitoring device;

[0061] 22. Exhaust port;

[0062] 23. Deodorization device. Specific embodiments

[0063] The present invention will be further described in conjunction with the following embodiments.

[0064] Example 1

[0065] The present invention provides a cow dung colloid separation and treatment device and method. The core lies in realizing the efficient separation and multi-purpose utilization of fibers, lignin and other organic matters in fresh cow dung through a unique colloid breaking process and layered treatment technology. The following combines the attached Figure 1 to the attached Figure 2 and specific component numbers to elaborate in detail on the specific implementation manner of the present invention.

[0066] First, introduce the overall operation principle of the present invention. This device mainly includes a separation and stirring tank 1, a dry-wet separator assembly 11 and a sewage purification unit 18. The separation and stirring tank 1 is used to complete the preparation and preliminary layered treatment of cow dung slurry. The dry-wet separator assembly 11 is responsible for grading and separating different particle size fiber components in the slurry, while the sewage purification unit 18 performs in-depth purification treatment on the separated sewage. The entire process from pretreatment to resource utilization realizes automatic control, significantly improving the treatment efficiency and reducing the cost.

[0067] In the specific implementation process, the first step is the pretreatment of cow dung. The fresh cow dung is successively fished for debris grading through a coarse grid sewage screen, a ten-centimeter grid sewage screen, a five-centimeter grid sewage screen and a one-centimeter grid sewage screen. This process can effectively remove large particle impurities in the cow dung, such as stones, plastic bags, etc., thus providing a relatively pure raw material for subsequent treatment. The pretreated cow dung is then transported to the separation and stirring tank 1 by a four-inch vertical pole pump, injecting six cubic meters of cow dung and adding three cubic meters of water to form cow dung slurry. The mixing of cow dung and water in this ratio can ensure that the slurry has appropriate fluidity, facilitating subsequent stirring and separation operations.

[0068] Next, enter the stirring and mixing stage. Start the stirring motor 2 on the separation stirring tank 1. The output end of the stirring motor 2 is connected to the stirring shaft 3. Multiple groups of stirring blades 4 are fixedly installed on the stirring shaft 3. The stirring blades 4 are designed in a multi-layer distribution form, which can ensure the uniform mixing of the cow dung slurry in the tank. The stirring process is divided into three steps: preliminary stirring, adding separation agents, and deep stirring. The preliminary stirring lasts for five minutes to initially mix the cow dung and water. Subsequently, quartz sand and zeolite powder are added into the tank through the zeolite powder filling port 6. Among them, quartz sand is used to break the colloid bond of cow dung, and zeolite powder is used for the stratification of dissolved substances. The addition amount of quartz sand is 50 kilograms per cubic meter of cow dung slurry, and the addition amount of zeolite powder is 30 kilograms per cubic meter of cow dung slurry. The addition of these separation agents can significantly improve the breaking efficiency of cow dung colloid and promote the stratification effect. The deep stirring lasts for ten minutes to form a stratified mixed solution of cow dung slurry with quartz sand, lignin, fiber solution, and organic matter from bottom to top. The stratification detection device 8 includes multiple liquid level sensors 9, which are respectively located at different height positions of the separation stirring tank 1 and are used to monitor the interface positions of each layer of the stratified mixed solution in real time. The data processing module 10 is electrically connected to the liquid level sensors 9 and can analyze the interface positions of each layer according to the monitoring results and automatically adjust the stirring time and the addition amount of separation agents, so as to ensure that the stratification effect reaches the best state. The finally formed stratified mixed solution is discharged into the slurry storage tank through the solution discharge port 7 for standby.

[0069] After completing the stirring and mixing, enter the dry-wet separation stage. The dry-wet separator assembly 11 includes a drum sieve 12 and a three-head screw machine 13. A detachable sand cloth layer 14 is provided on the outer wall of the drum sieve 12. The mesh numbers of the sand cloth layer 14 are ten meshes, eighty meshes, and two hundred meshes respectively. The cow dung slurry is transported to the dry-wet separator assembly 11 through a four-inch vertical pole pump and undergoes three-stage separation in sequence. The first-stage separation is through a ten-mesh sieve to separate the coarse fiber components; the second-stage separation is through an eighty-mesh sieve to separate the medium-sized fiber components; the third-stage separation is through a two-hundred-mesh sieve to separate the fine fiber components and sewage. Each stage of separation is completed through the coordinated action of the three-head screw machine 13 to ensure the separation efficiency and accuracy. In addition, the dry-wet separator assembly 11 is also equipped with an automatic cleaning device 15. The automatic cleaning device 15 includes a high-pressure nozzle 16 and a cleaning liquid storage tank 17. The high-pressure nozzle 16 is installed above the drum sieve 12 and is used to regularly clean the residues on the surface of the sieve to avoid blockage and affect the separation effect.

[0070] The separated sewage enters the sewage treatment stage. The sewage purification unit 18 includes a black sand pipe 19 and a zeolite powder filling layer 20. The outer wall of the black sand pipe 19 is wrapped with a clay material, which is used to adsorb impurities, anions and cations in the sewage. The sewage after being screened by 200 meshes is injected into a special sewage tank through a sewage injection port, and then purified through the black sand pipe 19. Every twenty groups of black sand pipes 19 form a treatment unit, and 10 tons of purified water can be produced per hour. A flow monitoring device 21 is installed at the outlet end of the black sand pipe 19, which is used to monitor the purified water flow in real time and adjust the purification process parameters. The sediment, anion and cation residues in the black sand pipe 19 are regularly cleaned to ensure the stability of the purification effect.

[0071] Finally, it is the resource utilization stage. The separated coarse fiber components can be used to produce substrate soil, the medium-sized fiber components can be used to manufacture biofuels, and the fine fiber components and other organic matters can be used to extract high-value-added products. The whole process not only realizes the efficient separation of cow dung, but also meets the resource utilization requirements, with significant economic and environmental benefits.

[0072] In practical applications, the operation process of this equipment can be monitored and optimized throughout the whole process through an automatic control system. For example, the exhaust port 22 at the top of the separation and stirring tank 1 is connected to a deodorizing device 23, and the deodorizing device 23 is filled with a probiotic deodorant, which is used to remove the odor generated during the cow dung treatment process. This design not only improves the working environment, but also reduces the impact on the surrounding environment. In addition, all key components of the equipment adopt a modular design, which is convenient for maintenance and replacement, further improving the reliability and service life of the equipment.

[0073] In summary, through a unique colloidal separation process and layered treatment technology, combined with efficient dry-wet separation and sewage treatment means, the present invention realizes the efficient separation and multi-purpose utilization of fibers, lignin and other organic matters in fresh cow dung. This equipment and method not only significantly improve the treatment efficiency, but also greatly reduce the treatment cost, while meeting the resource utilization requirements, and have broad application prospects and promotion value.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the protection scope of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A cow dung colloid separation and treatment device and method, characterized in that: It includes the following steps: S1: Pretreatment. Fresh cow dung is successively passed through a coarse grid trash rack, a 10-cm grid trash rack, a 5-cm grid trash rack, and a 1-cm grid trash rack to remove sundries by grading; S2: Slurry preparation. Use a 4-inch vertical pump to inject the pretreated cow dung into a cylindrical separation and stirring tank, inject 6 cubic meters of cow dung and add 3 cubic meters of water; S3: Stirring and mixing. Start the separation stirrer to stir the cow dung slurry for 15 minutes. After the cow dung slurry is fully mixed, inject it into the cow dung slurry storage tank; S4: Dry-wet separation. Use a 4-inch vertical pump to transport the slurry in the cow dung slurry storage tank to a dry-wet separator. The dry-wet separator adopts a drum screen structure and is equipped with a three-head screw machine, and sandpapers with 10 meshes, 80 meshes, and 200 meshes are respectively set to form three groups of fiber components with different particle sizes; S5: Sewage treatment. Inject the sewage screened by 200 meshes into a special sewage pool and carry out purification treatment through the process of wrapping clay zeolite powder with black sand pipes. Every 20 groups of black sand pipes are a treatment unit, and 10 tons of purified water can be produced per hour; S6: Resource utilization. Collect the separated fibers, lignin, and other organic matters respectively.

2. The cow dung colloid separation and treatment equipment and method according to claim 1, characterized in that: The dry-wet separation in step S4 is specifically as follows: S41: Primary separation. Pass the cow dung slurry through a 10-mesh screen to separate the coarse fiber component; S42: Secondary separation. Pass the remaining slurry through an 80-mesh screen to separate the medium-particle-size fiber component; S43: Tertiary separation. Pass the remaining slurry through a 200-mesh screen to separate the fine fiber component and sewage.

3. A cow dung colloid separation and treatment device and method according to claim 2, characterized in that: The sewage treatment in step S5 is specifically as follows: S51: Sewage injection. Inject the sewage screened by 200 meshes into a special sewage pool; S52: Purification treatment. Purify the sewage through the process of wrapping clay zeolite powder with black sand pipes, and 10 tons of purified water can be produced per hour; S53: Impurity cleaning. Regularly clean the sediment and anion and cation residues in the black sand pipes.

4. A cow dung colloid separation and treatment device and method according to claim 3, characterized in that: The stirring and mixing in step S3 is specifically as follows: S31: Preliminary stirring. Start the separation stirrer to stir the cow dung slurry for 5 minutes to preliminarily mix the cow dung and water; S32: Adding separation agent. Add quartz sand and zeolite powder into the stirring tank. Quartz sand is used to break the colloidal bond of cow dung, and zeolite powder is used for the stratification of dissolved substances; S33: Deep stirring. Continue to stir for 10 minutes to form a stratified mixed solution of quartz sand, lignin, fiber solution, and organic matter from bottom to top in the cow dung slurry; S34: Discharging. Discharge the stratified mixed solution into the storage tank for standby.

5. A cow dung colloid separation and treatment device and method according to claim 4, characterized in that: It includes a separation and stirring tank. A stirring motor is installed on the separation and stirring tank. The output end of the stirring motor is connected to a stirring shaft. Multiple groups of stirring blades are fixedly installed on the stirring shaft. A quartz sand storage tank, a zeolite powder filling port, and a solution discharge port are arranged at the bottom of the separation and stirring tank.

6. The cow dung colloid separation and treatment equipment and method according to claim 5, characterized in that: A stratification detection device is arranged inside the separation and stirring tank. The stratification detection device includes multiple liquid level sensors. The liquid level sensors are respectively located at different height positions of the separation and stirring tank and are used to monitor the interface positions of each layer of the stratified mixed solution in real time.

7. A cow dung colloid separation and treatment device according to claim 6, characterized in that: The stratification detection device also includes a data processing module. The data processing module is electrically connected to the liquid level sensors and is used to analyze the interface positions of each layer and control the stirring time and the addition amount of the separation agent.

8. A cow dung colloid separation and treatment device according to claim 5, characterized in that: The device further includes a dry-wet separator assembly, which includes a drum screen and a three-head screw machine. A detachable abrasive cloth layer is provided on the outer wall of the drum screen, and the mesh numbers of the abrasive cloth layer are 10 mesh, 80 mesh, and 200 mesh respectively.

9. A cow dung colloid separation and treatment device according to claim 8, characterized in that: The dry-wet separator assembly further includes an automatic cleaning device, which includes a high-pressure nozzle and a cleaning liquid storage tank. The high-pressure nozzle is installed above the drum screen and is used to regularly clean the residues on the screen surface.

10. A cow dung colloid separation and treatment device according to claim 5, characterized in that: The device further includes a sewage purification unit, which includes a black sand pipe and a zeolite powder filling layer. The outer wall of the black sand pipe is wrapped with a clay material for adsorbing impurities and cations and anions in the sewage. The sewage purification unit further includes a flow monitoring device, which is installed at the outlet end of the black sand pipe and is used to monitor the purified water flow in real time and adjust the purification process parameters.

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