Special pretreatment system for cleaning water of glue cylinder of cigarette factory

Abstract

The utility model discloses a pretreatment system special for cigarette factory rubber cylinder cleaning water, which comprises a rubber cylinder water collecting pool, a submersible sewage pump is arranged in the rubber cylinder water collecting pool, and the submersible sewage pump is communicated with a water tank water inlet on a rubber cylinder cleaning water tank through a rubber cylinder cleaning water special pipe. A water tank water inlet, a water tank overflow port and a water tank drain outlet are formed in the rubber cylinder cleaning water tank; a basket filter is arranged on the special rubber cylinder cleaning water pipe, and gate valves are arranged on the special rubber cylinder cleaning water pipe on the two sides of the basket filter; the water tank drain outlet is communicated to the upper part of the sludge tank through a drain pipe; the sludge tank is lower than the water tank drain outlet on the rubber cylinder cleaning water tank; the water tank overflow port is communicated to the upper part of the adjusting tank through an overflow pipe; and the adjusting tank is lower than the water tank overflow port on the glue cylinder cleaning water tank.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater pretreatment, in particular to a special pretreatment system for cleaning water of rubber cylinders in a cigarette factory. Background Art

[0002] The main pollutant in the wastewater from cleaning the glue cylinder of cigarettes is polymer adhesive. Most polymer adhesives are viscous milky liquids, generally copolymers of vinyl acetate and soft monomers. The emulsified wastewater generated when cleaning the glue cylinder contains a large amount of organic pollutants. The wastewater is in a stable emulsion state. The incoming water has the characteristics of high emulsification, high concentration of pollutants, unbalanced water volume and quality, easy foaming due to aeration, and low content of nitrogen and phosphorus components, resulting in a relatively high COD value. After testing, the COD is about 10,000 mg / L.

[0003] Since the rubber tank cleaning water has a certain viscosity, a large amount of rubber tank water discharged into the regulating tank in a short time will inevitably bring a huge load impact to the sewage system. For example, if it adheres to the membrane surface, it will cause the membrane flux to decrease. To a certain extent, membrane pollution and blockage will occur, resulting in frequent membrane cleaning cycles, reduced service life, unstable and substandard reclaimed water output, and other serious consequences, affecting the stable operation of the sewage treatment system.

[0004] In the existing wastewater treatment system, for example, the Chinese invention patent with application number CN 201810040724.7 discloses a pretreatment device for washing wastewater in a car 4S shop repair shop, which includes an oil separator, an adsorption chamber, a separation chamber, an aeration chamber and a sedimentation chamber. The oil separator is provided with a water inlet pipe, a first aeration plate, a water distribution pipe, an oil scraper and an oil floating tank; the adsorption chamber is provided with an adsorbent addition metering system and a stirring device; the bottom of the separation chamber is a conical structure, and a sediment discharge valve is provided at the bottom of the conical structure; the aeration chamber is provided with a second aeration plate and a second blower; the bottom of the sedimentation chamber is a conical structure, and a sludge discharge valve is provided at the bottom of the conical structure, and an overflow weir is provided at the top of the sedimentation chamber, and the overflow weir is connected to the outlet pipe, and the water discharged from the outlet pipe meets the standards for discharge or reuse. If this patent is used to process glue tank cleaning water, it still has the following defects: 1. The reaction chambers of this patent are connected together, and the channels between the reaction chambers are open channels that cannot be controlled and adjusted. If an accident occurs in one of the pools, it will affect other pools and expand the accident area; 2. When a reaction chamber of this patent is inspected and maintained, the entire pretreatment device needs to stop working, affecting the working efficiency of the pretreatment device. Summary of the invention

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a special pretreatment system for cleaning water of a rubber cylinder in a cigarette factory.

[0006] The utility model is realized by the following technical solutions:

[0007] A special pretreatment system for cleaning water of rubber cylinders in cigarette factories, comprising:

[0008] Glue tank water collection pool 1, used to collect glue tank cleaning water;

[0009] A submersible sewage pump 2 is arranged in the glue tank water collection tank 1, and the submersible sewage pump 2 is used to lift the glue tank cleaning water in the glue tank water collection tank 1;

[0010] The glue cylinder cleaning water tank 3 is connected to the submersible sewage pump 2 through a dedicated glue cylinder cleaning water pipe 21. The glue cylinder cleaning water tank 3 is provided with a water tank water inlet 31, a water tank overflow port 32 and a water tank sewage outlet 33;

[0011] The basket filter 4 is arranged in the middle of the dedicated pipe 21 for cleaning water of the glue tank, and gate valves 81 are arranged on the dedicated pipes 21 for cleaning water of the glue tank on both sides of the basket filter 4;

[0012] The height of the sludge pool 6 is lower than the height of the water tank drain outlet 33 on the rubber cylinder cleaning water tank 3, and the water tank drain outlet 33 is connected to the top of the sludge pool 6 through a drain pipe 61;

[0013] The height of the regulating tank 7 is lower than the height of the water tank overflow port 32 on the glue cylinder cleaning water tank 3 , and the water tank overflow port 32 is connected to the top of the regulating tank 7 through an overflow pipe 71 .

[0014] Furthermore, an accident pool 5 is arranged on the ground between the sludge pool 6 and the regulating pool 7 , and the rubber cylinder cleaning water tank 3 is installed on the top of the accident pool 5 .

[0015] Furthermore, a partition 35 is provided in the middle of the glue cylinder cleaning water tank 3, so that the glue cylinder cleaning water tank 3 is divided into two independent water tanks;

[0016] The water tank water inlet 31 is arranged above the two independent water tanks, the water tank sewage outlet 33 is arranged below the two independent water tanks, and the water tank overflow port 32 is arranged in the middle position of the side of the two independent water tanks.

[0017] Furthermore, gate valves 81 are provided at the water tank water inlet 31 , the water tank overflow port 32 and the water tank sewage outlet 33 .

[0018] Furthermore, two sets of submersible sewage pumps 2 are arranged in the glue cylinder water collection pool 1, and the dedicated pipes 21 for glue cylinder cleaning water between the two sets of submersible sewage pumps 2 and the basket filter 4 are connected through a three-way pipe fitting, and a set of valve groups 8 are respectively arranged on the dedicated pipes 21 for glue cylinder cleaning water at the water outlets of the two sets of submersible sewage pumps 2.

[0019] Furthermore, the valve group 8 includes two gate valves 81 and a check valve 82 connected between the two gate valves 81 .

[0020] Furthermore, the two independent water tanks in the glue cylinder cleaning water tank 3 are both provided with ultrasonic level meters.

[0021] Furthermore, water tank manholes 34 are provided on both sides of the glue cylinder cleaning water tank 3 .

[0022] The working principle of this utility model:

[0023] The utility model collects the cleaning water of the rubber cylinder separately through the rubber cylinder water collection pool 1, and sucks the cleaning water of the rubber cylinder in the rubber cylinder water collection pool 1 to the special pipe 21 for cleaning water of the rubber cylinder through the submersible sewage pump 2 and the special pipe 21 for cleaning water of the rubber cylinder, and the basket filter 4 in the middle of the special pipe 21 for cleaning water of the rubber cylinder filters out the solid matter that is agglomerated or larger than the size of the filter mesh hole in the cleaning water of the rubber cylinder. The cleaning water of the rubber cylinder filtered by the basket filter 4 flows into the cleaning water tank 3 of the rubber cylinder from the water inlet 31 at the top of the cleaning water tank 3 of the rubber cylinder, and forms the upper and lower stratification phenomenon through natural sedimentation in the cleaning water tank 3, wherein the upper layer is clear liquid and the lower layer is concentrated liquid. The upper clear liquid overflows into the regulating tank 7 of the biochemical treatment system through the water tank overflow port 32 in the middle of the cleaning water tank 3 of the rubber cylinder and the overflow pipe 71, and the opening of the gate valve 81 at the water tank overflow port 32 can be controlled to realize the homogeneous flow of the upper clear liquid into the regulating tank 7. The lower concentrated liquid is discharged to the sludge pool 6 through the water tank drain port 33 and the drain pipe 61, thereby realizing the pretreatment function of the rubber tank cleaning water.

[0024] There are two submersible sewage pumps 2 in the glue cylinder water collection pool 1, one for use and the other for backup. The glue cylinder cleaning water tank 3 is divided into two independent water tanks by the partition 35. When one submersible sewage pump 2 fails and one independent water tank is blocked, the gate valve 81 of the outlet valve group 8 of the failed submersible sewage pump 2 can be closed, and the gate valve 81 at the water inlet 31 and the overflow port 32 of the independent water tank can be closed for inspection and maintenance, and the other submersible sewage pump 2 and the independent water tank continue to process the glue cylinder cleaning water.

[0025] When accidents such as leakage, fire, equipment damage, etc. occur in the glue cylinder cleaning water tank 3 above the accident pool 5, the waste water in the glue cylinder cleaning water tank 3 can be discharged into the accident pool 5 in time.

[0026] Compared with the prior art, the utility model has the following beneficial effects:

[0027] 1. The utility model filters solids that are agglomerated or larger than the size of the filter mesh in the rubber cylinder cleaning water through the basket filter 4, and naturally settles the granular solids in the rubber cylinder cleaning water through the rubber cylinder cleaning water tank 3. Most of the solids in the rubber cylinder cleaning water are removed by the method of flow filtration plus static sedimentation, which greatly reduces the pollution and clogging of the subsequent membrane treatment system and improves the working efficiency of the subsequent biochemical and membrane treatment systems.

[0028] 2. The two submersible sewage pumps 2 of the utility model are used as one for use and the other for backup. The rubber cylinder cleaning water tank 3 is divided into two independent water tanks by a partition 35. When one submersible sewage pump 2 fails and / or one independent water tank is blocked, the gate valve 81 of the failed submersible sewage pump 2 and the water inlet and outlet of the independent water tank can be closed, and the other submersible sewage pump 2 and the independent water tank can be used to continue working. While ensuring the pretreatment efficiency of the rubber cylinder cleaning water, it is convenient for the inspection and maintenance of the submersible sewage pump 2 and the rubber cylinder cleaning water tank 3.

[0029] 3. The utility model provides a gate valve at the front and rear of the basket filter 4, and the gate valves 81 at the front and rear of the basket filter 4 are closed, and the filter screen in the basket filter 4 can be disassembled to dump debris and clear and clean, which is simple and convenient to operate.

[0030] 4. The glue cylinder cleaning water tank 3 of the utility model is arranged above the accident pool 5. When an accident occurs in the glue cylinder cleaning water tank 3, the wastewater in the glue cylinder cleaning water tank 3 can be discharged into the accident pool 5 in time, avoiding the high-concentration organic wastewater with large pH fluctuations from bringing a high impact load to the subsequent biochemical treatment and membrane treatment system, reducing the impact of the accident and improving the accident treatment efficiency.

[0031] 5. The gate valve 81 at the overflow port 32 of the water tank controls the supernatant in the water tank to be discharged evenly to the regulating tank 7 at a small flow rate to ensure the stability of the sewage load and extend the residence reaction time of the rubber tank water in the subsequent biochemical tank. This measure can effectively reduce the impact of the rubber tank water on the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the connection structure of the glue tank water collection pool, submersible sewage pump, basket filter and glue tank cleaning water tank of the utility model;

[0033] Figure 2 This is a schematic diagram of the structure of the rubber cylinder cleaning water tank, the accident pool and the sludge pool of the utility model;

[0034] Figure 3 For this utility model Figure 2 Schematic diagram of the cross section at AA in the middle;

[0035] Figure 4 It is a structural schematic diagram of the glue cylinder cleaning water tank of the utility model.

[0036] Numbers in the figure:

[0037] 1-Glue tank water collection pool;

[0038] 2-submersible sewage pump, 21-special pipe for cleaning water of rubber cylinder;

[0039] 3- glue cylinder cleaning water tank, 31- water tank water inlet, 32- water tank overflow port, 33- water tank sewage outlet, 34- water tank manhole, 35- partition;

[0040] 4-basket filter; 5-accident pool;

[0041] 6-sludge tank, 61-sewage pipe;

[0042] 7- regulating tank, 71- overflow pipe;

[0043] 8-valve group, 81-gate valve, 82-check valve. DETAILED DESCRIPTION

[0044] In order to enable those skilled in the art to better understand the technical solution of the utility model, its specific implementation method is described in detail below with reference to the accompanying drawings.

[0045] like Figure 1-4 As shown, a special pretreatment system for glue cylinder cleaning water in a cigarette factory includes a glue cylinder water collection pool 1, a submersible sewage pump 2, a glue cylinder cleaning water tank 3, a basket filter 4, an accident pool 5, a sludge pool 6 and a regulating pool 7.

[0046] In an embodiment, Figure 1 As shown, two submersible sewage pumps 2 are provided in the glue cylinder water collection pool 1, one for use and the other for standby. When one submersible sewage pump 2 fails and stops for maintenance, the other submersible sewage pump 2 can be activated to keep working. The two sets of submersible sewage pumps 2 are connected to the basket filter 4 through the dedicated pipe 21 for glue cylinder cleaning water and the three-way pipe fitting, and the basket filter 4 is connected to the water tank inlet 31 on the glue cylinder cleaning water tank 3 through the dedicated pipe 21 for glue cylinder cleaning water.

[0047] There is a valve group 8 on each of the dedicated pipes 21 for cleaning the rubber cylinder at the outlet of the two submersible sewage pumps 2, which respectively controls the on and off of the pipelines of the two submersible sewage pumps 2. One valve group 8 includes two gate valves 81 and a check valve 82 connected between the two gate valves 81. A gate valve is set before and after the basket filter 4, and the gate valves 81 before and after the basket filter 4 are closed, and the filter screen in the basket filter 4 can be removed for dredging and cleaning.

[0048] In an embodiment, Figure 1 As shown in the figure, the glue tank cleaning water tank 3 is arranged on the top of the accident pool 5, with a diameter of 3m. A partition 35 is made in the middle to divide it into two independent water tanks. The volume of a single water tank is 21.5m 3 The total volume of the two water tanks is 43m 3 The water tank is made of 304 stainless steel with a wall thickness of 10mm.

[0049] A water tank inlet 31 is provided above the two independent water tanks of the glue cylinder cleaning water tank 3. The glue cylinder cleaning water dedicated pipe 21 at the water outlet end of the basket filter 4 is connected to the two water tank inlets 31 in two ways. A gate valve 81 is provided on each of the two water tank inlets 31. The gate valve 81 is used to control the flow rate of the water tank inlet 31.

[0050] A water tank overflow port 32 is provided in the middle position of one side of the two independent water tanks. The water tank overflow port 32 is connected to the top of the regulating tank 7 through an overflow pipe 71. The height of the regulating tank 7 is lower than the height of the water tank overflow port 32 on the glue cylinder cleaning water tank 3. A gate valve 81 is provided on both water tank overflow ports 32. The gate valve 81 is used to control the supernatant in the water tank to be discharged evenly to the regulating tank 7 at a small flow rate, thereby ensuring the stability of the sewage load and prolonging the residence reaction time of the glue cylinder water in the subsequent biochemical tank.

[0051] A water tank drain outlet 33 is provided below the two independent water tanks for discharging the concentrated liquid in the lower layer of the independent water tanks; a gate valve 81 is installed below each of the two water tank drain outlets 33, and they are combined through a drain pipe 61 to form a main pipe for discharging to the top of the sludge pool 6. The gate valve 81 is used to control the opening of the concentrated liquid discharge work in the lower layer of the independent water tank. The height of the sludge pool 6 is lower than the height of the water tank drain outlet 33 on the rubber cylinder cleaning water tank 3.

[0052] The two independent water tanks are provided with water tank manholes 34 at the ends, which are convenient for the staff to install, repair and safely inspect the glue tank cleaning water tank 3; if one of the independent water tanks is blocked, the gate valve 81 at the water tank inlet 31 and the water tank overflow port 32 of the independent water tank can be closed, and then the water tank manhole 34 of the independent water tank can be opened for dredging and maintenance. A saddle seat bracket is provided at the bottom of the glue tank cleaning water tank 3, and the saddle seat bracket is installed on the top of the accident pool 5.

[0053] Working mode of the utility model:

[0054] Step 1: Discharge the cleaning water of the glue tank into the glue tank water collection pool 1 in advance.

[0055] Step 2: Close the gate valve 81 of the valve group 8 at the water outlet of the standby submersible sewage pump 2, open the gate valve 81 of the valve group 8 at the water outlet of the submersible sewage pump 2 to be used, then open the gate valves 81 on both sides of the basket filter 4, open the gate valve 81 at the water inlet 31 above the glue cylinder cleaning water tank 3 and the gate valve 81 at the overflow port 32 on the side of the glue cylinder cleaning water tank 3, and finally close the gate valve 81 at the sewage outlet 33 of the water tank below the glue cylinder cleaning water tank 3.

[0056] Step 3: Start the power supply of the submersible sewage pump 2 to be used, and the submersible sewage pump 2 starts working. The rubber cylinder cleaning water is sucked by the submersible sewage pump 2 and flows from the rubber cylinder cleaning water dedicated pipe 21 to the basket filter 4. The solid matter in the rubber cylinder cleaning water that is lumped or larger than the filter mesh size is intercepted by the filter mesh of the basket filter 4. The rubber cylinder cleaning water after preliminary filtration flows from the water outlet of the basket filter 4 through the rubber cylinder cleaning water dedicated pipe 21 and the water tank inlet 31 to the rubber cylinder cleaning water tank 3. The rubber cylinder cleaning water level in the rubber cylinder cleaning water tank 3 slowly rises. During the period of rising liquid level, the fine granular solid matter in the rubber cylinder cleaning water slowly settles to the bottom of the rubber cylinder cleaning water tank 3, and forms an upper and lower stratification phenomenon through natural sedimentation, with the upper layer being a clear liquid and the lower layer being a concentrated liquid. After the rubber cylinder cleaning water level reaches the water tank overflow port 32, the upper clear liquid flows out from the water tank overflow port 32 and overflows into the regulating tank 7 of the biochemical treatment system through the overflow pipe 71.

[0057] Step 4: The staff regularly dredges and cleans the filter screen of the basket filter 4. Before dredging the basket filter 4, the gate valves 81 on both sides of the basket filter 4 are closed, and then the sealing cover plate on the top of the basket filter 4 is opened, the filter basket is pulled out, and the debris in the filter basket is dumped into the sludge pool 6 for centralized treatment.

[0058] After a period of pretreatment of the cleaning water in the cleaning water tank 3, the lower concentrated liquid in the cleaning water tank 3 gradually settles, and the staff regularly opens the gate valve 81 at the water tank drain port 33 to discharge the sewage. Before discharging sewage, the staff first closes the gate valve 81 at the water tank water inlet 31 and the water tank overflow port 32 of the independent water tank, and then opens the gate valve 81 at the water tank drain port 33 of the independent water tank, and the lower concentrated liquid is discharged to the sludge pool 6 through the water tank drain port 33 and the sewage pipe 61. After the concentrated liquid is discharged, the water tank drain port 33 is closed, and then the water tank water inlet 31 and the water tank overflow port 32 are opened in sequence to resume the pretreatment work. The sewage discharge work of the two independent water tanks is carried out alternately to ensure that the cleaning water tank 3 of the cleaning water tank works uninterruptedly.

[0059] It should be noted that the above detailed introduction of the technical solution of the utility model and the description of the principle of the utility model are provided, and the above description of the working principle is only used to help understand the core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

[0060] The technical personnel in the technical field of the utility model can make modifications or supplements to the specific embodiments described or replace them in a similar manner, as long as they do not deviate from the structure of the utility model or exceed the scope defined by the claims, which shall fall within the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A special pretreatment system for cleaning water of rubber cylinders in cigarette factories, characterized in that: include: A glue tank water collection pool (1), used to collect glue tank cleaning water; A submersible sewage pump (2) is arranged in the glue tank water collection pool (1), and the submersible sewage pump (2) is used to lift the glue tank cleaning water in the glue tank water collection pool (1); The glue cylinder cleaning water tank (3) is connected to the submersible sewage pump (2) through a dedicated glue cylinder cleaning water pipe (21), and the glue cylinder cleaning water tank (3) is provided with a water tank water inlet (31), a water tank overflow port (32) and a water tank sewage outlet (33); A basket filter (4) is arranged in the middle of the dedicated pipe (21) for cleaning water of the glue tank, and gate valves (81) are arranged on the dedicated pipes (21) for cleaning water of the glue tank on both sides of the basket filter (4); The sludge pool (6) is lower than the height of the water tank drain outlet (33) on the rubber cylinder cleaning water tank (3), and the water tank drain outlet (33) is connected to the top of the sludge pool (6) through a drain pipe (61); The regulating pool (7) is lower in height than the water tank overflow port (32) on the glue cylinder cleaning water tank (3), and the water tank overflow port (32) is connected to the upper side of the regulating pool (7) through an overflow pipe (71).

2. The special pretreatment system for cleaning water of the rubber cylinder of a cigarette factory according to claim 1 is characterized by: An accident pool (5) is arranged on the ground between the sludge pool (6) and the regulating pool (7), and a rubber cylinder cleaning water tank (3) is installed on the top of the accident pool (5).

3. The special pretreatment system for cleaning water of the rubber cylinder in the cigarette factory according to claim 1 is characterized by: A partition (35) is provided in the middle of the glue cylinder cleaning water tank (3), so that the glue cylinder cleaning water tank (3) is divided into two independent water tanks; The water tank water inlet (31) is arranged above the two independent water tanks, the water tank sewage outlet (33) is arranged below the two independent water tanks, and the water tank overflow port (32) is arranged at the middle position of the side of the two independent water tanks.

4. The special pretreatment system for cleaning water of the rubber cylinder in the cigarette factory according to claim 1, characterized in that: The water tank water inlet (31), the water tank overflow port (32) and the water tank sewage outlet (33) are all provided with gate valves (81).

5. The special pretreatment system for cleaning water of the rubber cylinder in the cigarette factory according to claim 1 is characterized by: Two sets of submersible sewage pumps (2) are arranged in the glue cylinder water collection pool (1); the dedicated pipes (21) for glue cylinder cleaning water between the two sets of submersible sewage pumps (2) and the basket filter (4) are connected via a three-way pipe fitting; and a set of valve groups (8) are respectively arranged on the dedicated pipes (21) for glue cylinder cleaning water at the water outlets of the two sets of submersible sewage pumps (2).

6. The special pretreatment system for cleaning water of the rubber cylinder in the cigarette factory according to claim 5, characterized in that: The valve group (8) comprises two gate valves (81) and a check valve (82) connected between the two gate valves (81).

7. The special pretreatment system for cleaning water of the rubber cylinder in the cigarette factory according to claim 3 is characterized by: The two independent water tanks in the glue cylinder cleaning water tank (3) are both provided with ultrasonic liquid level meters.

8. The special pretreatment system for cleaning water of the rubber cylinder in the cigarette factory according to claim 1, characterized in that: Water tank manholes (34) are arranged on both sides of the glue cylinder cleaning water tank (3).

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