Industrial waste liquid purification equipment with automatic chemical cleaning function

Abstract

The utility model discloses industrial waste liquid purification equipment with an automatic chemical cleaning function. The industrial waste liquid purification equipment comprises a purification unit and a cleaning unit, the purification unit comprises a waste liquid circulating water tank, a filtering module and a waste liquid pressure pump. The filtering module comprises a filter, a waste liquid circulating water inlet valve and a waste liquid circulating water outlet valve. The cleaning unit comprises a pulse purging assembly and a cleaning assembly. The pulse purging assembly comprises a pulse purging generator and a pulse purging inlet valve. The cleaning assembly comprises a cleaning box, a cleaning pump, a chemical cleaning inlet valve and a chemical cleaning outlet valve. The waste liquid circulating water inlet valve, the chemical cleaning inlet valve and the pulse purging inlet valve are connected with one end of the filtering module, and the waste liquid circulating water outlet valve and the chemical cleaning outlet valve are connected to the other end of the filtering module. According to the industrial waste liquid purification equipment with the automatic chemical cleaning function, the ineffective consumption of chemical cleaning agents is greatly reduced, and the discharge amount of chemical cleaning waste liquid is reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of waste liquid treatment equipment, and in particular, it is an industrial waste liquid purification equipment with automated chemical cleaning function. Background Technology

[0002] Wastewater treatment has always been a challenge for enterprises in industrial production. Traditional treatment methods often suffer from low efficiency, high cost, and resource waste, making it difficult to meet the requirements of modern industry for environmental protection and resource recycling. Moreover, the cleaning of industrial wastewater purification equipment is also an important factor affecting its operating efficiency and service life.

[0003] For example, Chinese patent application CN202311793451.0, concerning waste fluid treatment equipment and process for machine tool cutting fluid, describes a multi-stage filtration system using a series of progressively smaller filter plates (primary, secondary, and tertiary) to filter particles of varying sizes within the cutting fluid, significantly improving filtration efficiency. While the filtered-off chips are scraped away by a scraper to maintain the cleanliness of the three filter plates, this system only scrapes the plates and does not actually clean them. Over time, oil, particles, and other impurities in the waste fluid clog the filter pores, affecting the system's performance. Furthermore, traditional chemical cleaning methods involve pouring chemical cleaning agents into a waste fluid circulation tank before allowing them to flow into the filtration system. However, this method consumes a large amount of chemical cleaning agents, increasing production costs and generating waste fluid that causes further environmental pollution. Utility Model Content

[0004] In view of this, the present invention provides an industrial waste liquid purification device with automated chemical cleaning function that can reduce the ineffective consumption of chemical cleaning agents, in order to meet industrial needs.

[0005] An industrial wastewater purification device with automated chemical cleaning function includes a purification unit for purifying wastewater and a cleaning unit connected to the purification unit for transferring chemical cleaning solution. The purification unit includes a wastewater circulation tank for containing industrial wastewater, a filter module connected to the wastewater circulation tank, and a wastewater pressure pump connected between the wastewater circulation tank and the filter module. The filter module includes a filter, a wastewater circulation inlet valve connecting the wastewater circulation tank and the filter, and a wastewater circulation outlet valve connecting the wastewater circulation tank and the filter. The cleaning unit includes a pulse purging assembly connected to one side of the filter module and a cleaning assembly connected to one side of the filter module. The pulse purging assembly includes a pulse purging generator connected to the filter module and a pulse purging inlet valve disposed between the pulse purging generator and the filter module. The cleaning assembly includes a cleaning tank for containing chemical cleaning agents, a cleaning pump connected to one side of the cleaning tank, a chemical cleaning inlet valve connected between the filter module and the cleaning tank, and a chemical cleaning outlet valve connected between the filter module and the cleaning tank. The waste liquid circulation inlet valve, the chemical cleaning inlet valve, and the pulse purging inlet valve are all connected to one end of the filter module, while the waste liquid circulation outlet valve and the chemical cleaning outlet valve are connected to the other end of the filter module. Thus, a cleaning unit is connected to the filter module to achieve cleaning of the filter module.

[0006] Furthermore, the filter includes a filter body, a circulation inlet at one end of the filter body, a circulation outlet at the end of the filter body opposite to the circulation inlet, a clean water outlet on the filter body, and a water production valve connected to the clean water outlet.

[0007] Furthermore, the clean water outlet is located on the side wall of the filter body, the circulating inlet is located at the bottom of the filter body, and the circulating outlet is located at the top of the filter body.

[0008] Furthermore, the filter body is an ultrafiltration module.

[0009] Furthermore, the waste liquid circulation tank includes a waste liquid circulation tank body and a waste liquid drain valve disposed on the waste liquid circulation tank body.

[0010] Furthermore, the cleaning tank includes a cleaning tank body and a cleaning liquid discharge valve disposed on the cleaning tank body.

[0011] Compared with existing technologies, the industrial wastewater purification equipment with automated chemical cleaning function provided by this utility model treats industrial wastewater through the purification unit, and the cleaning unit performs chemical cleaning on the filter module in the purification unit. Both ends of the filter module in the purification unit are connected to a wastewater circulation tank. A wastewater pressure pump is located between the wastewater circulation tank and the filter module. The wastewater pressure pump can transfer the wastewater in the wastewater circulation tank to the filter module. The filter module returns the wastewater with impurities back to the main body of the wastewater circulation tank and flows out the purified liquid with a precision lower than that of the filter main body. The pulse purging assembly and the cleaning assembly in the cleaning unit are both connected to one side of the filter module. The pulse purging assembly includes a pulse purging generator and a pulse purging inlet valve located between the pulse purging generator and the filter module. The cleaning assembly includes a cleaning tank for containing chemical cleaning agents, a cleaning pump connected to one side of the cleaning tank, a chemical cleaning inlet valve connected between the filter module and the cleaning tank, and a chemical cleaning outlet valve connected between the filter module and the cleaning tank. The waste liquid circulation inlet valve, chemical cleaning inlet valve, and pulse purging inlet valve are all connected to one end of the filter module, while the waste liquid circulation outlet valve and chemical cleaning outlet valve are connected to the other end of the filter module. This allows for the connection of a cleaning unit to the filter module for cleaning. Furthermore, the waste liquid pressure pump, pulse purging assembly, and cleaning assembly can each process the filter module independently. When the industrial waste liquid purification equipment with automated chemical cleaning function starts chemical cleaning, the pulse purging generator uses compressed air to purge the filter module, returning residual waste liquid in the pipelines and equipment system back to the waste liquid circulation tank. Then, the cleaning pump in the cleaning assembly is activated, introducing chemical cleaning agents into the filter module to chemically clean the surface of the filter layer, improving cleaning efficiency. Therefore, it can be seen that industrial waste liquid purification equipment with automated chemical cleaning function significantly reduces the ineffective consumption of chemical cleaning agents, reduces the discharge of chemical cleaning waste liquid, and lowers cleaning costs. Attached Figure Description

[0012] Figure 1 A schematic diagram of the structure of the industrial waste liquid purification equipment with automated chemical cleaning function provided by this utility model. Detailed Implementation

[0013] The specific embodiments of this utility model are described in further detail below. It should be understood that the description of the embodiments of this utility model herein is not intended to limit the scope of protection of this utility model.

[0014] like Figure 1The diagram shown is a structural schematic of the industrial wastewater purification equipment with automated chemical cleaning function provided by this utility model. The equipment includes a purification unit 10 for purifying wastewater, and a cleaning unit 20 connected to the purification unit 10 for transferring chemical cleaning solution. The equipment also includes other functional modules, such as assembly components, electrical connection components, etc., which are technologies known to those skilled in the art and will not be described in detail here.

[0015] The purification unit 10 includes a waste liquid circulation tank 11 for containing industrial waste liquid, a filter module 12 connected end to end to the waste liquid circulation tank 11, and a waste liquid pressure pump 13 connected between the waste liquid circulation tank 11 and the filter module 12.

[0016] The waste liquid circulation tank 11 includes a waste liquid circulation tank body 111 and a waste liquid drain valve 112 disposed on the waste liquid circulation tank body 111.

[0017] The waste liquid circulation tank body 111 contains industrial waste liquid, and the waste liquid drain valve 112 is located at the bottom of the waste liquid circulation tank body 111, so as to facilitate the discharge of industrial waste liquid in the waste liquid circulation tank body 111. The waste liquid circulation tank body 111 and the waste liquid drain valve 112 are both existing technologies and will not be described in detail here.

[0018] The filter module 12 includes a filter 121, a waste liquid circulation inlet valve 122 connecting the waste liquid circulation tank 111 and the filter 121, and a waste liquid circulation outlet valve 123 connecting the waste liquid circulation tank 111 and the filter 121.

[0019] The filter 121 includes a filter body 1211, a circulation inlet 1212 disposed at one end of the filter body 1211, a circulation outlet 1213 disposed at the end of the filter body 1211 opposite to the circulation inlet 1212, a clean water outlet 1214 disposed on the filter body 1211, and a water production valve 1215 connected to the clean water outlet 1214.

[0020] In this embodiment, the filter body 1211 is an ultrafiltration module. An ultrafiltration module is a device that uses an ultrafiltration membrane for liquid filtration. An ultrafiltration membrane is a membrane material with many tiny pores, the size of which can precisely control the passage of substances at the molecular level. Under pressure, solvents and small molecules can pass through these pores, while large molecules are effectively intercepted, thereby achieving separation and purification. When the waste liquid pressure pump 13 delivers the purified liquid (less than the filtration precision of the filter body 1211) to the filter body 1211, the purified liquid is returned to the production system for recycling, while the waste liquid carrying the intercepted impurities is returned to the waste liquid circulation tank body 111. The filter body 1211 is a prior art technology and will not be described in detail here.

[0021] The clean water outlet 1214 is located on the side wall of the filter body 1211, the circulating liquid inlet 1212 is located at the inlet end of the filter body 1211, and the circulating liquid outlet 1213 is located at the outlet end of the filter body 1211. Thus, when waste liquid enters the filter body 1211, the waste liquid passes through the surface of the internal filter material at a specific speed, and the clean liquid passes through the filter material and collects at the side wall and flows out.

[0022] The circulating inlet 1212 is connected to the waste liquid pressure pump 13 and one end of the cleaning unit 20. The waste liquid pressure pump 13 is used to transfer industrial waste liquid in the waste liquid circulating tank 11 to the filter body 1211, or to clean the filter body 1211 through the chemical cleaning agent in the cleaning unit 20.

[0023] The circulating outlet 1213 is connected to the waste liquid circulating inlet valve 122 and one end of the cleaning unit 20. The circulating outlet 1213 returns the waste liquid with trapped impurities to the waste liquid circulating tank body 111, or the circulating outlet 1213 returns the cleaned chemical cleaning agent to the cleaning unit 20. The clean water outlet 1214 discharges purified liquid from the waste liquid circulating tank body 111 that is smaller than the filter body 1211. This purified liquid can be reused in the production system. The product water valve 1215 controls the opening and closing of the clean water outlet 1214. The circulating inlet 1212, the circulating outlet 1213, the clean water outlet 1214, and the product water valve 1215 are all existing technologies and will not be described in detail here.

[0024] The waste liquid pressure pump 13 is used to transfer the industrial waste liquid in the waste liquid circulation tank 11 to the filter module 12 to achieve the filtration of the industrial waste liquid. The waste liquid pressure pump 13 is a prior art and will not be described in detail here.

[0025] The cleaning unit 20 includes a pulse purging assembly 21 connected to one side of the filter module 12, and a cleaning assembly 22 connected to one side of the filter module 21.

[0026] The pulse purging assembly 21 includes a pulse purging generator 211 connected to the filter module 12 and a pulse purging inlet valve 212 disposed between the pulse purging generator 211 and the filter module 12.

[0027] The pulse purge generator 211 is used to compress air and output the compressed air. The pulse purge inlet valve 212 is used to control the opening or closing of the air outlet of the pulse purge generator 211. The pulse purge generator 211 can purge the filter module 12 and purge the residual liquid in the pipeline and equipment system back to the waste liquid circulation tank 11 or the cleaning tank 221 described below to improve the cleaning efficiency. The pulse purge generator 211 and the pulse purge inlet valve 212 are both existing technologies and will not be described in detail here.

[0028] The cleaning assembly 22 includes a cleaning tank 221 for containing chemical cleaning agents, a cleaning pump 222 connected to one side of the cleaning tank 221, a chemical cleaning inlet valve 223 connected between the filter module 12 and the cleaning tank 221, and a chemical cleaning outlet valve 224 connected between the filter module 12 and the cleaning tank 221.

[0029] The cleaning tank 221 includes a cleaning tank body 2211 and a cleaning liquid discharge valve 2212 disposed on the cleaning tank body 2211. The cleaning tank body 2211 is used to store chemical cleaning agents, and the cleaning liquid discharge valve 2212 is used to control the discharge of chemical cleaning agents from the cleaning tank body 2211. When the cleaning effect of the chemical cleaning agents in the cleaning tank body 2211 is lower than the set cleaning requirements, the cleaning liquid discharge valve 2212 opens and discharges the chemical cleaning agents from the cleaning tank body 2211. The cleaning tank 221 and the cleaning liquid discharge valve 2212 are both existing technologies and will not be described in detail here.

[0030] The cleaning pump 222 is used to transfer the chemical cleaning agent in the cleaning tank 221 to the filter module 12, thereby cleaning the filter module 12 with the chemical cleaning agent. The cleaning pump 222 is a prior art technology and will not be described in detail here.

[0031] The chemical cleaning inlet valve 223 and the chemical cleaning outlet valve 224 are respectively located at both ends of the filter module 12, thereby connecting the filter module 12 to achieve circulating cleaning. The waste liquid circulation inlet valve 123, the chemical cleaning inlet valve 223, and the pulse purging inlet valve 212 are all connected to one end of the filter module 12, while the waste liquid circulation outlet valve 224 and the chemical cleaning outlet valve 224 are connected to the other end of the filter module 12. Thus, the cleaning unit 20 is connected to the filter module 12 to achieve cleaning of the filter module 12. Furthermore, the waste liquid pressure pump 13, the pulse purging assembly 21, and the cleaning assembly 22 can each individually process the filter module 12.

[0032] The industrial wastewater purification equipment with automated chemical cleaning function also includes a control device (not shown in the figure). The control device is interconnected with the purification unit 10 and the cleaning unit 20. The control device can control the opening or closing of the purification unit 10 and the cleaning unit 20 to purify the wastewater or start chemical cleaning.

[0033] When the industrial wastewater purification equipment with automated chemical cleaning function is turned on to purify wastewater, the wastewater circulation inlet valve 122, wastewater circulation outlet valve 123, and product water valve 1215 are opened, while the chemical cleaning inlet valve 223, the chemical cleaning outlet valve 224, and the pulse purging inlet valve 212 are closed. The industrial wastewater enters the wastewater circulation tank. After reaching a high level, the wastewater pressure pump 13 starts, and the wastewater is pumped to the filter module 12. Purified liquid with a filtration accuracy lower than that of the filter module 12 flows back to the production system for reuse, while wastewater carrying impurities returns to the wastewater circulation tank 11. This cycle continues until the liquid level in the wastewater circulation tank 11 drops to a low level, completing one filtration cycle. After this filtration cycle, the industrial wastewater re-enters the wastewater circulation tank 11, and the above steps are repeated. When the concentration of pollutants trapped in the wastewater circulation tank 11 reaches a certain level, the wastewater circulation tank 11 is opened and the wastewater is discharged for disposal.

[0034] When the industrial waste liquid purification equipment with automated chemical cleaning function is used to purify the waste liquid, after the filter module 12 is used for a period of time, physical or chemical clogging will form on the surface of the filter layer, causing the filter capacity of the module to decrease. It is necessary to clean it with chemical cleaning agents to clean the surface of the filter layer again and restore the filter capacity of the filter module 12. The filter module 12 is then chemically cleaned by the cleaning unit 20.

[0035] When an industrial wastewater purification device with automated chemical cleaning function starts chemical cleaning, it sequentially includes an isolation stage, a pulse reflux stage, and a pulse reflux stage, specifically:

[0036] The first stage is the isolation stage. The waste liquid circulation inlet valve 122, the product water valve 1215, the chemical cleaning inlet valve 223, the chemical cleaning outlet valve 224 are closed, and the waste liquid circulation outlet valve 123 is open. That is, the filter module 12 retains the return channel between the filter module 12 and the waste liquid circulation tank 11.

[0037] The second stage is the pulse return stage. The pulse purge inlet valve 212 is opened, and the pulse purge generator 211 blows compressed air into the filter module 12 at a set rhythm, blowing the residual waste liquid in the pipeline and equipment system back into the waste liquid circulation tank 11. This ensures that the chemical cleaning agent does not react with the remaining waste liquid, but only acts on the substances clogging the surface of the filter layer in the filter module 12, thereby greatly reducing the consumption of the agent, realizing multiple cycles, and improving cleaning efficiency.

[0038] The third stage is the cleaning stage. After the pulse purge generator 211 completes the purging, the waste liquid circulation outlet valve 123 and the pulse purge inlet valve 212 are closed, while the chemical cleaning inlet valve 223 and the chemical cleaning outlet valve 224 are opened. The cleaning pump 222 is activated, and the chemical cleaning agent enters the filter module 12 to chemically clean the surface of the filter layer in the filter module 12. After the set cleaning time is reached, the cleaning pump 222 stops, the chemical cleaning outlet valve 224 is closed, the pulse purge inlet valve 212 is opened, and the pulse purge generator 211 blows compressed air into the filter module 12 at a set rhythm, thoroughly purging any residual chemical cleaning agent present in the pipeline and equipment system back into the cleaning tank 221. After cleaning, the filter module 12 restores its filtration performance and can be used to purify industrial waste liquid again.

[0039] Compared with the prior art, the industrial wastewater purification equipment with automated chemical cleaning function provided by this utility model treats industrial wastewater through the purification unit 10, and the cleaning unit 20 performs chemical cleaning on the filter module 12 in the purification unit 10. Both ends of the filter module 12 in the purification unit 10 are connected to the wastewater circulation tank 11. The wastewater pressure pump 13 is located between the wastewater circulation tank 11 and the filter module 12. The wastewater pressure pump 13 can transfer the wastewater in the wastewater circulation tank 11 to the filter module 12. The filter module 12 returns the wastewater with impurities to the main body 111 of the wastewater circulation tank and discharges the purified liquid with a precision lower than that of the filter body 1211. The pulse purging assembly 21 and the cleaning assembly 22 in the cleaning unit 20 are both connected to one side of the filter module 21. The pulse purging assembly 21 includes a pulse purging generator 211 and a pulse purging inlet valve 212 disposed between the pulse purging generator 211 and the filter module 12. The cleaning assembly 22 includes a cleaning tank 221 for containing chemical cleaning agents, a cleaning pump 222 connected to one side of the cleaning tank 221, a chemical cleaning inlet valve 223 connected between the filter module 12 and the cleaning tank 221, and a chemical cleaning outlet valve 224 connected between the filter module 12 and the cleaning tank 221. The waste liquid circulation inlet valve 123, chemical cleaning inlet valve 223, and pulse purging inlet valve 212 are all connected to one end of the filter module 12. The waste liquid circulation outlet valve 224 and the chemical cleaning outlet valve 224 are connected to the other end of the filter module 12, thereby connecting the cleaning unit 20 to the filter module 12 to achieve cleaning of the filter module 12. Moreover, the waste liquid pressure pump 13, the pulse purging assembly 21, and the cleaning assembly 22 can all process the filter module 12 independently. When the industrial waste liquid purification equipment with automatic chemical cleaning function starts chemical cleaning, the pulse purging generator 211 blows compressed air into the filter module 12, blowing the residual waste liquid in the pipeline and equipment system back into the waste liquid circulation tank 11. Then, the cleaning pump 222 in the cleaning assembly 22 is turned on to introduce chemical cleaning agent into the filter module 12 to chemically clean the surface of the filter layer in the filter module 12, thereby improving the cleaning efficiency. This demonstrates that industrial wastewater purification equipment with automated chemical cleaning capabilities significantly reduces the ineffective consumption of chemical cleaning agents, decreases the discharge of chemical cleaning wastewater, and lowers cleaning costs.

[0040] The above are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Any modifications, equivalent substitutions or improvements within the spirit of the present utility model are covered within the scope of the claims of the present utility model.

Claims

1. An industrial wastewater purification device with automated chemical cleaning function, characterized in that: The industrial waste liquid purification device with automatic chemical cleaning function comprises a purification unit for purifying waste liquid, and a cleaning unit connected to the purification unit and used for transmitting chemical cleaning liquid, the purification unit comprises a waste liquid circulating water tank for containing industrial waste liquid, a filter module connected to the waste liquid circulating water tank, and a waste liquid pressure pump connected between the waste liquid circulating water tank and the filter module, the filter module comprises a filter, a waste liquid circulating inlet valve connected between the waste liquid circulating water tank and the filter, and a waste liquid circulating outlet valve connected between the waste liquid circulating water tank and the filter, the cleaning unit comprises a pulse purge assembly connected to one side of the filter module, and a cleaning assembly connected to one side of the filter module, the pulse purge assembly comprises a pulse purge generator connected to the filter module, and a pulse purge inlet valve arranged between the pulse purge generator and the filter module, the cleaning assembly comprises a cleaning tank for containing chemical cleaning agent, a cleaning pump connected to one side of the cleaning tank, a chemical cleaning inlet valve connected between the filter module and the cleaning tank, and a chemical cleaning outlet valve connected between the filter module and the cleaning tank, the waste liquid circulating inlet valve, the chemical cleaning inlet valve, and the pulse purge inlet valve are connected to one end of the filter module, and the waste liquid circulating outlet valve and the chemical cleaning outlet valve are connected to the other end of the filter module, so that the filter module is connected with the cleaning unit to realize cleaning of the filter module.

2. The industrial waste liquid purification apparatus having an automatic chemical cleaning function according to claim 1, characterized by: The filter comprises a filter body, a circulating inlet arranged at one end of the filter body, a circulating outlet arranged at the other end of the filter body away from the circulating inlet, a clean water outlet arranged on the filter body, and a water production valve connected to the clean water outlet.

3. The industrial waste liquid purification apparatus having an automatic chemical cleaning function according to claim 2, characterized by: The clean water outlet is arranged on the side wall of the filter body, the circulating inlet is arranged at the bottom of the filter body, and the circulating outlet is arranged at the top of the filter body.

4. The industrial waste liquid purification apparatus having an automatic chemical cleaning function according to claim 2, characterized by: The filter body is an ultrafiltration filter module.

5. The industrial waste liquid purification apparatus having an automatic chemical cleaning function according to claim 1, characterized by: The waste liquid circulating water tank comprises a waste liquid circulating water tank body, and a waste liquid discharge valve arranged on the waste liquid circulating water tank body.

6. The industrial waste liquid purification apparatus having an automatic chemical cleaning function according to claim 1, characterized by: The cleaning tank comprises a cleaning tank body, and a cleaning liquid discharge valve arranged on the cleaning tank body.

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