A low flash point organic waste liquid pretreatment device

Abstract

This utility model discloses a pretreatment device for low flash point organic waste liquid, relating to the field of waste liquid treatment. It includes a mounting frame on which a primary filter, a secondary filter, and a tertiary filter are fixedly mounted. A second connecting pipe is fixedly connected between the output end of the primary filter and the input end of the secondary filter. A pneumatic diaphragm pump is fixedly mounted on the mounting frame. An input pipe is fixedly connected between the output end of the secondary filter and the input end of the pneumatic diaphragm pump, and an output pipe is fixedly connected between the output end of the pneumatic diaphragm pump and the input end of the tertiary filter. By setting inlet and outlet pipes, this device can directly draw organic waste liquid from the inside of a ton container containing organic waste liquid without emptying it from the waste liquid tank. After multi-stage filtration, the waste liquid is then transported to the empty ton container, significantly reducing the possibility of waste gas escape during the transfer process and ensuring the safety of the production environment.

Description

Technical Field

[0001] This utility model relates to the field of waste liquid treatment, specifically a pretreatment device for low flash point organic waste liquid. Background Technology

[0002] In recent years, with the growing calls for energy conservation and environmental protection, how to efficiently and cleanly treat industrial waste liquid has become a research hotspot.

[0003] In existing technologies, organic waste liquid is typically atomized by adding atomizing nozzles to the end of the pipeline, allowing for complete combustion. However, this method often results in blockages in the pipeline and atomizing nozzles due to excessive impurities in the waste liquid, necessitating frequent pipeline dredging and nozzle replacement. This not only affects the treatment efficiency and wastes significant manpower and resources but also leads to impurities clogging the pipeline and nozzles, causing damage to the waste liquid pump, pipeline, and nozzles. Therefore, organic waste liquid requires pretreatment before incineration to ensure the long-term use of the waste liquid pipeline and atomizing nozzles. Existing pretreatment methods mostly involve pouring out organic waste liquid and then scooping and filtering it. This method causes a large amount of waste gas to be released into the environment, which not only harms the personnel working in the area, but also poses a risk of fire and other safety accidents due to the flammability of the released waste gas. Therefore, there is an urgent need for a pretreatment device for low flash point organic waste liquid to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a pretreatment device for low flash point organic waste liquid to solve the problems mentioned in the background art.

[0005] A pretreatment device for low flash point organic waste liquid includes a mounting frame on which a primary filter, a secondary filter, and a tertiary filter are fixedly mounted. A second connecting pipe is fixedly connected between the output end of the primary filter and the input end of the secondary filter. A pneumatic diaphragm pump is fixedly mounted on the mounting frame. An input pipe is fixedly connected between the output end of the secondary filter and the input end of the pneumatic diaphragm pump, and an output pipe is fixedly connected between the output end of the pneumatic diaphragm pump and the input end of the tertiary filter. A first connecting pipe is fixedly mounted at the input end of the primary filter. A first collecting pipe is fixedly mounted at the end of the first connecting pipe away from the primary filter. An inlet pipe is fixedly mounted at the end of the first collecting pipe away from the first connecting pipe. A third connecting pipe is fixedly mounted at the output end of the tertiary filter. A second collecting pipe is fixedly mounted at the end of the third connecting pipe away from the tertiary filter. An outlet pipe is fixedly mounted at the end of the second collecting pipe away from the third connecting pipe. A barrel cover is fixedly mounted on both the inlet and outlet pipes.

[0006] Furthermore, exhaust gas collection pipes are fixedly installed on both the first and second collection pipes. Multiple air pumps corresponding to the exhaust gas collection pipes are fixedly installed on the mounting frame. An air delivery hose is fixedly connected between the input end of the air pump and the exhaust gas collection pipe. Multiple rotary kilns corresponding to the air pumps are fixedly installed on the mounting frame. A metal hose is fixedly connected between the output end of the air pump and the input end of the rotary kiln.

[0007] Furthermore, the primary, secondary, and tertiary filtration components all include a filter housing, with a central filter cartridge placed inside the filter housing. The upper end of the filter housing has an inlet, and the lower end of the filter housing has an outlet. A handle is fixedly installed on the central filter cartridge, and a sealing lid is detachably connected to the filter housing.

[0008] Furthermore, a primary pressure gauge is fixedly installed on the second connecting pipe, a secondary pressure gauge is fixedly installed on the input pipe, and a tertiary pressure gauge is fixedly installed on the third connecting pipe.

[0009] Furthermore, a plurality of evenly distributed lifting rings are fixedly installed on the mounting frame, and the lifting rings are connected to external lifting equipment.

[0010] Furthermore, the mounting bracket has a detachable clamp holding a plurality of evenly distributed electrostatic clamps, which are connected to a grounding terminal via wires.

[0011] Furthermore, a front-end valve is fixedly installed on the first connecting pipe, and a rear-end valve is fixedly installed on the third connecting pipe.

[0012] Furthermore, the height of the input port is higher than the height of the central filter cartridge, and the output port is at the same horizontal level as the bottom of the central filter cartridge.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. By setting up inlet and outlet pipes, this device can directly draw organic waste liquid from the inside of the ton container containing organic waste liquid without pouring it out of the waste liquid tank. After passing through multiple stages of filtration, the waste liquid is then transported to the empty ton container, which greatly reduces the possibility of waste gas escape during the changeover process and ensures the safety of the production environment. 2. By installing a tank cover, this device can not only prevent the escape of volatile waste gas inside the waste liquid tank during the replacement process, but also prevent the escape of volatile waste gas generated when the empty ton tank is filled with organic waste liquid, thus further increasing safety. 3. This device is equipped with an air pump and a rotary kiln. After the replacement is completed, the air pump can absorb part of the escaped organic waste gas and send it into the rotary kiln for combustion and harmless treatment, thereby reducing the escape rate after the replacement and further preventing the escape of organic waste gas. 4. This device is equipped with a primary pressure gauge, a secondary pressure gauge, and a tertiary pressure gauge. When a blockage occurs in a certain part of the device, the location of the blockage can be quickly determined by the changes in the readings of the primary, secondary, and tertiary pressure gauges. This facilitates rapid cleaning and replacement, reduces downtime, and prevents the pneumatic diaphragm pump from being damaged due to overload. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the inlet pipe and outlet pipe in this utility model; Figure 3 This is a schematic diagram of the structure of the waste gas collection pipe and the gas delivery hose in this utility model; Figure 4 This is a schematic diagram of the structure of the primary filter component in this utility model; Figure 5 This is a schematic diagram of the mounting bracket in this utility model.

[0015] In the picture: 1. Mounting frame; 11. Lifting ring; 12. Static clamp; 13. Air pump; 14. Rotary kiln; 2. Primary filtration unit; 21. Secondary filtration unit; 22. Tertiary filtration unit; 201. Filter housing; 202. Central filter cartridge; 203. Inlet; 204. Outlet; 205. Sealed lid; 206. Handle; 3. Pneumatic diaphragm pump; 31. Inlet pipe; 32. Outlet pipe; 4. First connecting pipe; 41. Second connecting pipe; 42. Third connecting pipe; 5. First collecting pipe; 51. Second collecting pipe; 6. Inlet pipe; 61. Outlet pipe; 62. Barrel mask; 7. Exhaust gas collection pipe; 71. Gas transmission hose; 8. Front-end valve; 81. Rear-end valve; 9. Level 1 pressure gauge; 91. Level 2 pressure gauge; 92. Level 3 pressure gauge. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1-5 This utility model provides a technical solution for a pretreatment device for low flash point organic waste liquid: It includes a mounting frame 1, on which a primary filter element 2, a secondary filter element 21, and a tertiary filter element 22 are fixedly mounted. A second connecting pipe 41 is fixedly connected between the output end of the primary filter element 2 and the input end of the secondary filter element 21. A pneumatic diaphragm pump 3 is fixedly mounted on the mounting frame 1. An input pipe 31 is fixedly connected between the output end of the secondary filter element 21 and the input end of the pneumatic diaphragm pump 3. An output pipe 32 is fixedly connected between the output end of the pneumatic diaphragm pump 3 and the input end of the tertiary filter element 22. A first connecting pipe 4 is fixedly mounted at the input end of the primary filter element 2, and the first connecting pipe 4 is located away from the primary filter element. A first collection pipe 5 is fixedly installed at one end of the filter component 2. An inlet pipe 6 is fixedly installed at the end of the first collection pipe 5 away from the first connecting pipe 4. A third connecting pipe 42 is fixedly installed at the output end of the three-stage filter component 22. A second collection pipe 51 is fixedly installed at the end of the third connecting pipe 42 away from the three-stage filter component 22. An outlet pipe 61 is fixedly installed at the end of the second collection pipe 51 away from the third connecting pipe 42. A barrel cover 62 is fixedly installed on both the inlet pipe 6 and the outlet pipe 61. A front valve 8 is fixedly installed on the first connecting pipe 4. A rear valve 81 is fixedly installed on the third connecting pipe 42. Multiple evenly distributed lifting rings 11 are fixedly installed on the mounting frame 1. The lifting rings 11 are connected to external lifting equipment.

[0018] Please see Figure 2When using this device, first use the hoisting equipment to lift the lifting ring 11 and the mounting frame 1, then insert the inlet pipe 6 into the ton container containing organic waste liquid, and at the same time insert the outlet pipe 61 into the empty ton container; open the front valve 8 and the rear valve 81, and then start the pneumatic diaphragm pump 3. The pneumatic diaphragm pump 3 generates negative pressure at the input pipe 31. The negative pressure is transmitted to the inlet pipe 6 through the secondary filter component 21, the second connecting pipe 41, the primary filter component 2, the first connecting pipe 4, and the first collection pipe 5, thereby generating suction at the inlet pipe 6 to draw up the organic waste liquid; it should be noted that the front valve 8 and the rear valve 81 can be, but are not limited to, manual ball valves.

[0019] As the pneumatic diaphragm pump 3 continues to operate, it transports the organic waste liquid drawn in by the inlet pipe 31 to the outlet pipe 32, and then discharges it into the empty ton container along the three-stage filter component 22, the third connecting pipe 42, the second collection pipe 51, and the outlet pipe 61. During this process, the first-stage filter component 2, the second-stage filter component 21, and the third-stage filter component 22 can filter out large particles and other impurities in the organic waste liquid. Furthermore, when the inlet pipe 6 and the outlet pipe 61 are inserted into the ton container, the container cover 62 is located above the container opening and has a hollow structure. The upper end of the container opening is located in the middle of the container cover 62, and there is a gap between the container cover 62 and the container opening for gas to pass through. When the pneumatic diaphragm pump 3 is working, the inlet pipe 6 draws waste liquid from the organic waste liquid ton. At this time, the liquid level inside the organic waste liquid ton gradually decreases. In order to ensure air pressure balance, gas will enter the organic waste liquid ton along the gap between the diaphragm cover 62 and the ton opening. This can prevent the volatile waste gas inside the organic waste liquid ton from escaping during the suction process and ensure the safety of the suction.

[0020] Both the inlet pipe 6 and the outlet pipe 61 extend to the bottom of the empty ton container. After the waste liquid is filtered, it enters the bottom of the empty ton container through the outlet pipe 61. At this time, the air inside the empty ton container is continuously occupied by the organic waste liquid, and the gas inside the empty ton container will overflow through the gap between the container cover 62 and the opening of the empty ton container. Since the gas density produced by the evaporation or natural volatilization of most organic waste liquids is greater than that of air, the outlet pipe 61 transports the waste liquid from the bottom, which ensures that the volatile gas produced by the organic waste liquid is always close to the liquid surface. The air will overflow the device first, and then wait for the liquid to settle after the container is full. The container cover 62 can also reduce the possibility of gas escaping from the inside of the empty ton container, greatly increasing the safety of the processing environment and significantly reducing the possibility of waste gas escape.

[0021] Furthermore, the volume of the waste liquid container is the same as that of the empty container. After being transported through pipelines and filtered by the primary filter element 2, the secondary filter element 21, and the tertiary filter element 22, the volume of the filtered waste liquid is smaller than that of the unfiltered waste liquid. Therefore, there is enough space above the empty container to accommodate volatile waste gas, further preventing the waste gas from escaping.

[0022] Waste gas collection pipes 7 are fixedly installed on both the first collection pipe 5 and the second collection pipe 51. Multiple air pumps 13 corresponding to the waste gas collection pipes 7 are fixedly installed on the mounting frame 1. A gas delivery hose 71 is fixedly connected between the input end of the air pump 13 and the waste gas collection pipe 7. Multiple rotary kilns 14 corresponding to the air pumps 13 are fixedly installed on the mounting frame 1. A metal hose is fixedly connected between the output end of the air pump 13 and the input end of the rotary kiln 14.

[0023] Please see Figure 1 After the replacement is completed, first close the front valve 8 and the rear valve 81, then control the external hoisting equipment again to lift the lifting ring 11 and the mounting frame 1, thereby pulling the inlet pipe 6 and the outlet pipe 61 out of the ton container. Because the inlet pipe 6 and the outlet pipe 61 are immersed in liquid during operation, when the inlet pipe 6 and the outlet pipe 61 are removed from the empty ton container, their outer surfaces will be covered with a large amount of organic waste liquid. After removal, this waste liquid will quickly evaporate and spread into the external environment.

[0024] Therefore, after the replacement is completed, the air pump 13 near the inlet pipe 6 is turned on first. The air pump 13 draws air through the first collection pipe 5, while the front valve 8 is closed. So the first collection pipe 5 draws air from the inlet pipe 6, sucking away the volatile waste gas inside the empty waste liquid container, and then transporting it to the rotary kiln 14 for incineration through a metal hose. When the outlet pipe 61 has completely removed the filtered waste liquid, the air pump 13 near the outlet pipe 61 is turned on, and the escaped waste gas at the outlet pipe 61 is sucked up to further prevent gas escape during the replacement and to suck away the gas brought out of the container for harmless treatment.

[0025] It should be noted that all air pumps 13 are turned off when changing the waste liquid. The air pumps 13 have a sealing function, which seals the air delivery hose 71 to ensure that the organic waste liquid stably passes through the first collection pipe 5 and does not enter the interior of the waste gas collection pipe 7 and the air delivery hose 71. In addition, the waste gas collection pipe 7 is tilted upwards to further prevent liquid from escaping.

[0026] The primary filter element 2, the secondary filter element 21, and the tertiary filter element 22 all include a filter housing 201. A central filter cartridge 202 is placed inside the filter housing 201. The upper end of the filter housing 201 has an inlet 203, and the lower end of the filter housing 201 has an outlet 204. A handle 206 is fixedly installed on the central filter cartridge 202. A sealing lid 205 is detachably connected to the filter housing 201. The height of the inlet 203 is higher than the height of the central filter cartridge 202, and the outlet 204 is at the same level as the bottom of the central filter cartridge 202.

[0027] When in use, the sealed lid 205 is tightly connected to the filter housing 201. When the outlet 204 generates negative pressure, it will be conducted to the inlet 203, and then the liquid will enter the filter housing 201 from the inlet 203 and finally be output to the outside of the filter component through the outlet 204. During this process, the waste liquid will be filtered by the central filter cartridge 202.

[0028] The inlet 203 is positioned higher than the central filter cartridge 202 to prevent the central filter cartridge 202 from blocking the outlet of the inlet 203, which would trap impurities inside the pipe and easily cause blockage. This design allows waste liquid to enter the central filter cartridge 202, be fully filtered, and then exit through the outlet 204 to the outside of the filter component. This process not only prevents impurities from clogging the pipe but also filters the waste liquid through a closed space, further preventing volatile waste gases from escaping into the external environment.

[0029] A primary pressure gauge 9 is fixedly installed on the second connecting pipe 41, a secondary pressure gauge 91 is fixedly installed on the input pipe 31, and a tertiary pressure gauge 92 is fixedly installed on the third connecting pipe 42.

[0030] When the primary filter element 2 becomes clogged, the continuous operation of the pneumatic diaphragm pump 3 will cause the pressure reading of the primary pressure gauge 9 to drop sharply, while the pressure of the secondary pressure gauge 91 and the tertiary pressure gauge 92 will increase sharply beyond the limit. At this time, the pneumatic diaphragm pump 3 can be stopped, and the corresponding sealing cover 205 can be opened. The handle 206 can be used to take out the central filter cartridge 202 inside for replacement.

[0031] When the secondary filter element 21 becomes clogged, the pressure reading of the primary pressure gauge 9 remains unchanged, the pressure reading of the secondary pressure gauge 91 drops sharply, and the pressure of the tertiary pressure gauge 92 increases sharply beyond the limit. Then, after stopping the pneumatic diaphragm pump 3, the central filter cartridge 202 inside the secondary filter element 21 is replaced.

[0032] When the tertiary filter element 22 becomes clogged, the pressure readings of the primary pressure gauge 9 and the secondary pressure gauge 91 remain unchanged, while the pressure of the tertiary pressure gauge 92 suddenly increases beyond the limit, stopping the pneumatic diaphragm pump 3 to replace the central filter cartridge 202 inside the tertiary filter element 22.

[0033] Using the above method, the specific location of the blockage can be quickly identified when a blockage occurs, facilitating targeted treatment and preventing prolonged downtime of the device. It also allows for quick replacement of the central filter cartridge 202, significantly increasing the practicality of the device. Furthermore, it ensures that the pneumatic diaphragm pump 3 can be quickly detected and shut down when a blockage occurs, preventing damage to it.

[0034] The mounting bracket 1 has a detachable clamp holding a plurality of evenly distributed electrostatic clips 12, which are connected to the grounding terminal via wires.

[0035] Because this device is designed to treat organic waste liquid and volatile waste gas, if a malfunction occurs or a large amount of organic waste gas leaks into the working environment due to gas-related reasons, static electricity in the device during hoisting or other working scenarios could lead to unpredictable dangers. Therefore, installing static electricity clamp 12 and grounding it can effectively eliminate static electricity generation and ensure work safety.

[0036] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A pretreatment device for low flash point organic waste liquid, comprising a mounting frame (1), characterized in that: The mounting bracket (1) is fixedly mounted with a primary filter component (2), a secondary filter component (21), and a tertiary filter component (22). A second connecting pipe (41) is fixedly connected between the output end of the primary filter component (2) and the input end of the secondary filter component (21). A pneumatic diaphragm pump (3) is fixedly mounted on the mounting bracket (1). An input pipe (31) is fixedly connected between the output end of the secondary filter component (21) and the input end of the pneumatic diaphragm pump (3). An output pipe (32) is fixedly connected between the output end of the pneumatic diaphragm pump (3) and the input end of the tertiary filter component (22). The input end of the primary filter component (2) is fixedly installed with a first connecting pipe (4), the end of the first connecting pipe (4) away from the primary filter component (2) is fixedly installed with a first collecting pipe (5), the end of the first collecting pipe (5) away from the first connecting pipe (4) is fixedly installed with a liquid inlet pipe (6), the output end of the tertiary filter component (22) is fixedly installed with a third connecting pipe (42), the end of the third connecting pipe (42) away from the tertiary filter component (22) is fixedly installed with a second collecting pipe (51), the end of the second collecting pipe (51) away from the third connecting pipe (42) is fixedly installed with a liquid outlet pipe (61), and a barrel cover (62) is fixedly installed on both the liquid inlet pipe (6) and the liquid outlet pipe (61). Waste gas collection pipes (7) are fixedly installed on the first collection pipe (5) and the second collection pipe (51). Multiple air pumps (13) corresponding to the waste gas collection pipes (7) are fixedly installed on the mounting frame (1). A gas delivery hose (71) is fixedly connected between the input end of the air pump (13) and the waste gas collection pipe (7). Multiple rotary kilns (14) corresponding to the air pumps (13) are fixedly installed on the mounting frame (1). A metal hose is fixedly connected between the output end of the air pump (13) and the input end of the rotary kiln (14).

2. The pretreatment device for low flash point organic waste liquid according to claim 1, characterized in that: The primary filter element (2), secondary filter element (21), and tertiary filter element (22) all include a filter housing (201). A central filter cartridge (202) is placed inside the filter housing (201). The upper end of the filter housing (201) has an inlet (203), and the lower end of the filter housing (201) has an outlet (204). A handle (206) is fixedly installed on the central filter cartridge (202), and a sealing lid (205) is detachably connected to the filter housing (201).

3. The pretreatment device for low flash point organic waste liquid according to claim 1, characterized in that: A first-level pressure gauge (9) is fixedly installed on the second connecting pipe (41), a second-level pressure gauge (91) is fixedly installed on the input pipe (31), and a third-level pressure gauge (92) is fixedly installed on the third connecting pipe (42).

4. The pretreatment device for low flash point organic waste liquid according to claim 1, characterized in that: Multiple evenly distributed lifting rings (11) are fixedly installed on the mounting frame (1), and the lifting rings (11) are connected to external lifting equipment.

5. The pretreatment device for low flash point organic waste liquid according to claim 1, characterized in that: The mounting bracket (1) has a detachable clamp holding a plurality of evenly distributed electrostatic clips (12), which are connected to a grounding terminal via wires.

6. The pretreatment device for low flash point organic waste liquid according to claim 1, characterized in that: A front valve (8) is fixedly installed on the first connecting pipe (4), and a rear valve (81) is fixedly installed on the third connecting pipe (42).

7. The pretreatment device for low flash point organic waste liquid according to claim 2, characterized in that: The height of the inlet (203) is higher than the height of the central filter cartridge (202), and the outlet (204) is at the same level as the bottom of the central filter cartridge (202).

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