Cleaning system and cleaning rake for polymers in formaldehyde tank

Abstract

The utility model relates to a cleaning system and a cleaning harrow for polymers in a formaldehyde tank, and the cleaning system for polymers in the formaldehyde tank comprises a formaldehyde tank, a cleaning harrow and a cleaning harrow, the formaldehyde tank comprises a top manhole, a bottom manhole and a bottom discharge port; the axial flow fan is mounted at the top manhole and is used for enabling the formaldehyde tank to be in a negative pressure state; the discharge pipeline is connected with the bottom discharge port; the recycling bin is connected with the discharge pipeline and is used for recycling the polymer; the cleaning rake extends into the formaldehyde tank from the bottom manhole and is used for cleaning polymers; the cleaning rake comprises a telescopic rod and a cleaning component installed at the end of the telescopic rod. When the cleaning system is used for cleaning polymers in the formaldehyde tank, personnel do not need to enter the formaldehyde tank, so that the polymers in the formaldehyde tank can be thoroughly cleaned, and the safety of operators can be ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of formaldehyde production, in particular to a cleaning system and a cleaning rake for cleaning polymers inside a formaldehyde tank. Background Art

[0002] Formaldehyde is widely used in chemical production. Many chemical plants need to set up formaldehyde tanks to store formaldehyde for a long time. Formaldehyde is prone to polymerization and produces white polymers. If formaldehyde is stored in a formaldehyde tank for a long time, a large amount of polymers will accumulate inside it, and the polymers in the formaldehyde tank need to be cleaned regularly.

[0003] Since the formaldehyde tank must be synchronized with the chemical plant for a long period of operation, a large amount of polymer will accumulate inside it, so the polymer cleaning process takes a long time and can only be cleaned when the plant is shut down for a long time for overhaul. When cleaning the formaldehyde tank, personnel need to wear protective equipment and enter the equipment for cleaning. Since formaldehyde polymers will continue to decompose and volatilize formaldehyde, which is toxic, the cleaning process is difficult and dangerous, and seriously threatens the personal safety of operators.

[0004] Therefore, it is of great significance to thoroughly clean the inside of the formaldehyde tank while ensuring the safety of operators to the greatest extent. Utility Model Content

[0005] The main purpose of the utility model is to provide a cleaning system and a cleaning rake for polymers inside a formaldehyde tank. The technical problem to be solved is how to provide a cleaning system for polymers inside a formaldehyde tank, which can not only achieve thorough cleaning of the inside of the formaldehyde tank, but also maximize the safety of operators, thereby being more suitable for practical use.

[0006] The purpose of the utility model and the technical problem to be solved are achieved by adopting the following technical solutions. A system for cleaning polymer inside a formaldehyde tank proposed by the utility model comprises:

[0007] A formaldehyde tank, wherein the formaldehyde tank comprises a top manhole, a bottom manhole and a bottom discharge port;

[0008] Axial flow fan, the aforementioned axial flow fan is installed at the aforementioned top manhole to extract the gas in the aforementioned formaldehyde tank outwards;

[0009] a discharge pipeline, one end of which is connected to the bottom discharge port and the other end is connected to the recovery; and,

[0010] The cleaning rake can be extended from the bottom manhole into the formaldehyde tank to clean the polymer; the cleaning rake comprises a telescopic rod and a cleaning component installed at the end of the telescopic rod.

[0011] The purpose of the utility model and the solution to its technical problems can also be further achieved by adopting the following technical measures.

[0012] Preferably, according to the aforementioned system for cleaning polymers inside a formaldehyde tank, it also includes a flushing water pipeline, and the aforementioned flushing water pipeline is connected to the aforementioned discharge pipeline.

[0013] Preferably, according to the aforementioned system for cleaning polymers inside a formaldehyde tank, it further comprises an air pipeline, and the aforementioned air pipeline is connected to the aforementioned discharge pipeline.

[0014] Preferably, according to the aforementioned system for cleaning polymers inside a formaldehyde tank, it further comprises a desalted water pipeline, and the aforementioned desalted water pipeline is connected to the aforementioned discharge pipeline.

[0015] Preferably, according to the aforementioned system for cleaning polymers inside a formaldehyde tank, the length of the aforementioned telescopic rod can be adjusted between 2 and 8 meters.

[0016] Preferably, according to the aforementioned system for cleaning polymers inside a formaldehyde tank, the aforementioned cleaning component is detachably connected to the aforementioned telescopic rod.

[0017] Preferably, according to the aforementioned system for cleaning polymers inside a formaldehyde tank, the aforementioned cleaning component is in the shape of a toothed plate or a flat plate.

[0018] The purpose of the utility model and the solution to its technical problems are also achieved by adopting the following technical solutions.

[0019] A cleaning rake for cleaning polymers inside a formaldehyde tank according to the utility model comprises: a telescopic rod; and,

[0020] A cleaning component, the cleaning component being mounted on the end of the telescopic rod;

[0021] The aforementioned cleaning rake can extend into the aforementioned formaldehyde tank from the bottom manhole of the formaldehyde tank; the aforementioned formaldehyde tank comprises a top manhole, the aforementioned bottom manhole and a bottom discharge port.

[0022] The purpose of the utility model and the solution to its technical problems can also be further achieved by adopting the following technical measures.

[0023] Preferably, according to the aforementioned cleaning rake, the aforementioned cleaning component is detachably connected to the aforementioned telescopic rod.

[0024] Preferably, according to the aforementioned cleaning rake, the aforementioned cleaning component is in the shape of a toothed plate or a flat plate.

[0025] By means of the above technical solution, the cleaning system and cleaning rake for cleaning polymer inside a formaldehyde tank proposed by the utility model have at least the following advantages:

[0026] The cleaning system of the polymer inside the formaldehyde tank of the utility model is provided with an exhaust fan at the manhole on the top of the formaldehyde tank, which can ensure a slight negative pressure state at the manhole at the bottom, so as to prevent the toxic substances volatilized by the polymer from causing personal injury to the operator; the operator operates a cleaning rake from the manhole at the bottom of the formaldehyde tank to clean the polymer; the cleaning rake includes a telescopic rod, and the length of the telescopic rod is adjusted according to the cleaning needs to clean the polymer in every corner of the formaldehyde tank; the cleaning component installed at the end of the telescopic rod breaks up the polymer into a paste, and discharges it from the discharge port at the bottom of the formaldehyde tank, and by utilizing the water accumulated inside the polymer, no additional water is needed, which greatly reduces the amount of waste recycling. When the cleaning system of the utility model is used to clean the polymer inside the formaldehyde tank, personnel do not need to enter the inside of the formaldehyde tank, which can ensure that the polymer inside the formaldehyde tank is thoroughly cleaned and the safety of the operator is ensured.

[0027] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the structure of a cleaning system for polymer inside a formaldehyde tank in some embodiments of the utility model;

[0029] Figure 2 It is a schematic structural diagram of a cleaning rake used for cleaning polymers inside a formaldehyde tank in some embodiments of the utility model;

[0030] Description of reference numerals:

[0031] 1. Formaldehyde tank; 2. Bottom manhole; 3. Axial flow fan; 4. 1# discharge valve; 5. 2# discharge valve; 6. Recovery barrel; 7. Desalted water pipeline; 8. Flushing water valve; 9. Flushing water pipeline main valve; 10. Flushing water pipeline bottom drain; 11. Air main valve; 12. Air main pipe bottom drain; 13. Temporary hose; 14. Fire hose; 15. Fire hose; 16. Removable scraper; 17. Removable rake; 18. Telescopic rod. DETAILED DESCRIPTION

[0032] In order to further explain the technical means and effects adopted by the utility model to achieve the predetermined utility model purpose, the following is a detailed description of a cleaning system and a cleaning rake for cleaning polymer inside a formaldehyde tank proposed by the utility model in combination with the accompanying drawings and preferred embodiments, and its specific implementation, structure, features and effects are as follows. In the following description, different "one embodiment" or "embodiment" does not necessarily refer to the same embodiment. In addition, specific features, structures or characteristics in one or more embodiments may be combined in any suitable form.

[0033] The utility model provides a system for cleaning polymer inside a formaldehyde tank, comprising:

[0034] A formaldehyde tank, wherein the formaldehyde tank comprises a top manhole, a bottom manhole and a bottom discharge port;

[0035] Axial flow fan, the aforementioned axial flow fan is installed at the aforementioned top manhole to extract the gas in the aforementioned formaldehyde tank outwards;

[0036] a discharge pipeline, one end of which is connected to the bottom discharge port and the other end is connected to the recovery; and,

[0037] The cleaning rake can be extended from the bottom manhole into the formaldehyde tank to clean the polymer; the cleaning rake comprises a telescopic rod and a cleaning component installed at the end of the telescopic rod.

[0038] Specifically, before the cleaning system provided by the present embodiment is used to clean the polymer inside the formaldehyde tank, the remaining formaldehyde in the formaldehyde tank can be sent back to the formaldehyde plant. Then, the formaldehyde tank is rinsed with warm water. After the first rinse, the formaldehyde is recovered to the formaldehyde plant. After the second and third rinses, the waste liquid is discharged to the sewage diversion system, and the accumulated water in the tank is drained. After confirming that all the formaldehyde inside the formaldehyde tank has been sent back to the formaldehyde plant, the water is added to rinse and the delivery is completed, and the relevant valves are all closed. After isolating the formaldehyde tank, the polymer inside the formaldehyde tank can be cleaned. The specific steps include: opening the top manhole, and installing an axial flow fan to extract the gas in the tank to the outside, ensuring that the inside of the formaldehyde tank is in a slightly negative pressure state. After starting the axial flow fan, remove the bottom manhole, stand at the bottom manhole, use a cleaning rake to flip the formaldehyde polymer in the tank, break up and stir the polymer, and use the water accumulated inside the polymer to merge with the polymer into a paste. Then the polymer is discharged from the bottom discharge port to the recovery barrel through the discharge pipeline. During discharge, always observe the discharge situation at the bottom discharge port from the bottom manhole. Because formaldehyde polymer has small lumps and is easy to block the discharge port, it is necessary to use a cleaning rake to break up the blocky formaldehyde polymer at the discharge port in time. After the recovery barrel is full, seal it, move it to the designated location, and affix a hazardous chemical label. After the polymer in the tank is completely discharged, use fire water to brush the inner wall and bottom of the tank again. At this time, the flushing liquid has no polymer and can be discharged to the sewage diversion system through the bottom discharge port.

[0039] In some specific embodiments of the present invention, the aforementioned system for cleaning polymers inside the formaldehyde tank further includes a flushing water pipeline, and the aforementioned flushing water pipeline is connected to the aforementioned discharge pipeline.

[0040] Specifically, the flushing water pipeline is connected to the discharge pipeline to flush water into the formaldehyde tank. When the internal polymer viscosity increases during the discharge process and the poor fluidity leads to slow discharge or even no discharge, a proper amount of flushing water is added to the formaldehyde tank through the flushing water pipeline to dilute the polymer and adjust the viscosity of the polymer, and then continue to discharge after completion.

[0041] In some specific embodiments of the present invention, the aforementioned system for cleaning polymers inside the formaldehyde tank further includes an air pipeline, and the aforementioned air pipeline is connected to the aforementioned discharge pipeline.

[0042] Specifically, the air pipeline blows air into the discharge pipeline to clear the pipeline when a blockage occurs during the discharge process. When a block is blocked at the bottom discharge port, the air is blown back to blow out the block in the pipe, and then the formaldehyde polymer is discharged.

[0043] In some specific embodiments of the present invention, the aforementioned system for cleaning polymers inside the formaldehyde tank further includes a desalted water pipeline, and the aforementioned desalted water pipeline is connected to the aforementioned discharge pipeline.

[0044] Specifically, the desalted water pipeline can be used to flush the residual polymers in the formaldehyde tank, and then discharge them to the recovery barrel through the discharge pipeline; or after the polymers inside the formaldehyde tank are completely discharged, the inner wall and bottom of the formaldehyde tank can be scrubbed again. At this time, the flushing liquid does not contain polymers and can be discharged to the sewage diversion system through the bottom discharge port.

[0045] In some specific embodiments of the present invention, the length of the telescopic rod can be adjusted between 2 and 8 meters.

[0046] Specifically, when it is necessary to clean the polymer on the side wall of the formaldehyde tank, the telescopic rod can be adjusted to a longer length; when it is necessary to clean the polymer on the bottom of the formaldehyde tank, the telescopic rod can be adjusted to a shorter length. The adjustment length of the telescopic rod is determined according to the actual size of the formaldehyde tank. The adjustment length of 2 to 8 meters is convenient for operators to operate and can clean most of the formaldehyde tanks in use.

[0047] In some specific embodiments of the present invention, the aforementioned cleaning component is detachably connected to the aforementioned telescopic rod.

[0048] Specifically, according to different cleaning requirements, cleaning components of different shapes are replaced to remove the polymer. After use, the cleaning component can be removed and separated from the telescopic rod for storage, which is convenient for storage and not easily damaged. The detachable connection between the cleaning component and the telescopic rod adopts a method commonly used by those skilled in the art, such as threaded connection, snap connection, etc.

[0049] In some specific embodiments of the present invention, the aforementioned cleaning component is in the shape of a toothed plate or a flat plate.

[0050] Specifically, when the cleaning component is in the shape of a toothed plate, it is convenient to turn over the formaldehyde polymer in the tank, break up and stir the polymer, use the water accumulated inside the polymer to merge with the polymer into a paste, and then discharge the polymer from the bottom discharge port to the recovery bucket through the discharge pipeline. Because the formaldehyde polymer has small lumps, the toothed plate-shaped cleaning component is convenient to break up the lumpy formaldehyde polymer at the bottom discharge port to avoid clogging the discharge port. When the cleaning component is a flat scraper, it is convenient to scrape the residual polymer on the side wall and bottom of the formaldehyde tank to the bottom discharge port to discharge all the polymer.

[0051] The utility model provides a cleaning rake for cleaning polymers inside a formaldehyde tank, comprising: a telescopic rod; and a cleaning component, wherein the cleaning component is installed at the end of the telescopic rod; the cleaning rake can extend into the formaldehyde tank from the bottom manhole of the formaldehyde tank; the formaldehyde tank comprises a top manhole, the bottom manhole and a bottom discharge port.

[0052] Specifically, the telescopic rod can be made of bamboo, plastic, metal and other materials. Hollow pipes are preferred, which can ensure a certain strength and control the weight to be small, so as to facilitate the operation of the operator. The cleaning part is fixedly connected to the telescopic rod, and can be connected by welding, riveting, nesting, threaded connection, snap connection and other methods. The cleaning part can be made of wood, plastic and other materials; it is not recommended to use materials with higher hardness such as metal materials to avoid scratching the inner wall of the formaldehyde tank.

[0053] In some specific embodiments of the present invention, the aforementioned cleaning component is in the shape of a toothed plate or a flat plate.

[0054] In some specific embodiments of the present invention, the adjustable length of the telescopic rod is 2 to 8 meters.

[0055] Specifically, the telescopic rod can be extended and retracted in a manner commonly used by those skilled in the art, such as by folding the rods to achieve length adjustment, or by nesting hollow rods with gradient diameters to achieve length adjustment, etc.

[0056] In some specific embodiments of the present invention, the aforementioned cleaning component can be freely assembled and disassembled from the aforementioned telescopic rod.

[0057] Specifically, the detachable connection between the cleaning component and the telescopic rod adopts a method commonly used by those skilled in the art, such as a threaded connection, a snap connection, etc.

[0058] The utility model will be further described below in conjunction with specific embodiments, but this should not be construed as limiting the scope of protection of the utility model. Some non-essential improvements and adjustments made to the utility model by technicians in this field based on the contents of the utility model above still fall within the scope of protection of the utility model.

[0059] Unless otherwise specified, the materials, reagents, etc. involved below are all commercially available products well known to those skilled in the art; unless otherwise specified, the methods described are all methods well known in the art. Unless otherwise defined, the technical terms or scientific terms used should have the common meanings understood by ordinary technicians in the field to which the utility model belongs.

[0060] Example 1

[0061] The present embodiment provides a system for cleaning polymers inside a formaldehyde tank, a cleaning rake for cleaning polymers inside a formaldehyde tank, and a method for cleaning polymers inside a formaldehyde tank.

[0062] The present embodiment provides a system for cleaning polymers inside a formaldehyde tank, comprising: a formaldehyde tank, the formaldehyde tank comprising a top manhole, a bottom manhole and a bottom discharge port; an axial flow fan, the axial flow fan being installed at the top manhole and being used to make the formaldehyde tank present a negative pressure state; a discharge pipeline, the discharge pipeline being connected to the bottom discharge port; a recovery barrel, the recovery barrel being connected to the discharge pipeline and being used to recover polymers; and a cleaning rake, the cleaning rake extending from the bottom manhole into the formaldehyde tank and being used to clean the polymers; wherein the cleaning rake comprises a telescopic rod and a cleaning component installed at the end of the telescopic rod.

[0063] After confirming that all the formaldehyde in the formaldehyde tank has been sent out, all relevant valves are closed, and the formaldehyde tank is isolated, the polymer inside the formaldehyde tank can be cleaned. The method for cleaning the polymer inside the formaldehyde tank using the system for cleaning the polymer inside the formaldehyde tank provided by this embodiment includes the following steps:

[0064] (1) Open the manhole on the top of the formaldehyde tank and install the axial flow fan. Pay attention to the direction of the axial flow fan's air inlet and outlet to ensure a slight negative pressure inside the formaldehyde tank. After starting the axial flow fan, disassemble the manhole at the bottom of the formaldehyde tank.

[0065] (2) The operator uses a cleaning rake to turn over the formaldehyde polymer in the tank at the bottom manhole to break up the polymer, and then uses the water accumulated inside the polymer to merge with the polymer into a paste.

[0066] (3) The discharge pipeline connects the bottom discharge port to the recovery barrel to discharge the polymer.

[0067] Example 2

[0068] The present embodiment provides a system for cleaning polymers inside a formaldehyde tank, a cleaning rake for cleaning polymers inside a formaldehyde tank, and a method for cleaning polymers inside a formaldehyde tank.

[0069] like Figure 1 As shown, the cleaning system of the polymer inside the formaldehyde tank of this embodiment includes: a formaldehyde tank 1, the formaldehyde tank 1 includes a top manhole, a bottom manhole 2, and a bottom discharge port; an axial flow fan 3, 1# Discharge valve 4, 2 # Discharge valve 5, recovery bucket 6; desalted water valve 7, flushing water valve 8, flushing water pipeline main valve 9, flushing water pipeline bottom drain 10, air main valve 11, air main bottom drain 12, temporary hose 13, fire hose 14, fire hose 15 and cleaning rake. Figure 2 As shown, the cleaning rake includes a detachable scraper 16 , a detachable turning rake 17 and a telescopic rod 18 .

[0070] The axial flow fan 3 is installed at the top manhole of the formaldehyde tank 1 , and the suction direction is from inside to outside to ensure the negative pressure inside the formaldehyde tank 1 .

[0071] One end of the discharge pipeline is connected to the bottom discharge port of the formaldehyde tank 1, and a discharge pipeline is provided on the discharge pipeline. # Drain valves 4 and 2 # The discharge valve 5 is used to control the polymer discharge rate. The other end of the discharge pipeline is connected to a recovery barrel 6, which is used to recover the polymer.

[0072] The discharge pipeline is also connected to the flushing water pipeline, through the flushing water pipeline main valve 9, the flushing water valve 8 and the 1 on the discharge pipeline. # Drain valves 4 and 2 # The discharge valve 5 cooperates to adjust the pressure and flow of the flushing water, which enters the discharge pipeline and plays a recoil role.

[0073] The discharge pipeline is also connected to the air pipeline, and the bottom drain 12 of the air main pipe is connected to the bottom drain 10 of the flushing water pipeline through a temporary hose 13, and then through the flushing water valve 8,1 # The discharge valve 4 enters the discharge line and plays a back-blowing role.

[0074] The outlet of the discharge pipeline is connected to the recovery barrel 6 through a fire hose 15, and is also connected to the desalted water pipeline through a fire hose 14. The connection is made by a clamp, which is firm, safe and convenient for disassembly and assembly.

[0075] The telescopic rod 18 is connected to the detachable rake 17 for stirring and breaking up the polymer; the telescopic rod 18 is connected to the detachable scraper 16 for cleaning the residual polymer on the inner wall and bottom of the formaldehyde tank 1. The telescopic rod 18 can be adjusted in length according to demand, and the longest can be 8 meters and the shortest can be adjusted to 2 meters.

[0076] After confirming that all the formaldehyde in the formaldehyde tank has been sent out, all relevant valves are closed, and the formaldehyde tank is isolated, the polymer inside the formaldehyde tank can be cleaned. The method for cleaning the polymer inside the formaldehyde tank using the system for cleaning the polymer inside the formaldehyde tank provided by this embodiment includes the following steps:

[0077] (1) Open the manhole on the top of the formaldehyde tank 1 and install the axial flow fan 3. Pay attention to the direction of the air inlet and outlet of the axial flow fan to ensure a slight negative pressure inside the formaldehyde tank 1. After starting the axial flow fan 3, disassemble the manhole 2 at the bottom of the formaldehyde tank 1.

[0078] (2) The telescopic rod 18 is connected to the detachable turning rake 17 to form a cleaning rake. The operator turns over the formaldehyde polymer in the tank at the bottom manhole 2 to break up the polymer and use the water accumulated in the polymer to merge with the polymer into a paste.

[0079] (3) Connect the discharge pipeline outlet to the recovery barrel 6 with a fire hose 15 and open 1 # Drain valves 4 and 2 # Discharge valve 5, discharges polymer.

[0080] (4) During discharge, the operator needs to observe the discharge situation at the bottom discharge port of the formaldehyde tank 1 and promptly break up the polymer agglomerates with a cleaning rake to avoid blockage of the bottom discharge port.

[0081] (5) When the discharge pipeline is blocked, close 2 # The discharge valve 5 uses the air in the air pipeline to blow back and blow out the blockage in the pipe. Connect the bottom drain 12 of the air main pipe with the bottom drain 10 of the flushing water pipeline using a temporary hose 13, open the flushing water valve 8, and close the main valve 9 of the flushing water pipeline to prevent air from entering other flushing water points through the flushing water pipeline.

[0082] (6) During the discharge process, if the polymer viscosity increases and the poor fluidity leads to slow discharge or even failure to discharge, open the flushing water pipeline main valve 9, flushing water valve 8, and close 2 # Drain valve 5, open 1 # Discharge valve 4, add appropriate amount of flushing water into the formaldehyde tank 1 for dilution, and continue to discharge after completion.

[0083] (7) When the polymer inside the formaldehyde tank 1 is basically discharged, there is a small amount of residue at the edge and the nozzle of the formaldehyde tank. The telescopic rod 18 is connected to the detachable scraper 16 to collect all the residual polymer to the bottom discharge port and continue to discharge until it is completed.

[0084] (8) Open the desalted water valve 7, add desalted water into the formaldehyde tank 1 to flush the residue, and finally discharge it to the recovery barrel 6 through the discharge pipeline.

[0085] (9) Move the cover of recycling bin 6 to the designated location and attach a hazardous chemicals label.

[0086] (10) After the polymer inside the formaldehyde tank 1 is completely discharged, the inner wall and bottom of the formaldehyde tank 1 are brushed again with desalted water. At this time, the flushing liquid does not contain polymer and can be discharged to the sewage diversion system through the bottom discharge port.

[0087] The technical features in the claims and / or the specification of the utility model can be combined, and the combination is not limited to the combination obtained by reference in the claims. The technical solution obtained by combining the technical features in the claims and / or the specification is also within the protection scope of the utility model.

[0088] The above is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A system for cleaning polymer inside a formaldehyde tank, characterized in that: include: A formaldehyde tank, wherein the formaldehyde tank comprises a top manhole, a bottom manhole and a bottom discharge port; An axial flow fan, the axial flow fan is installed at the top manhole to extract the gas in the formaldehyde tank outwards; A discharge pipeline, one end of which is connected to the bottom discharge port, and the other end of which is connected to a recovery bucket; as well as, A cleaning rake can be extended from the bottom manhole into the formaldehyde tank to clean polymers; the cleaning rake comprises a telescopic rod and a cleaning component installed at the end of the telescopic rod.

2. The system for cleaning polymer inside a formaldehyde tank according to claim 1, characterized in that: It also includes a flushing water pipeline connected to the discharge pipeline.

3. The system for cleaning polymer inside a formaldehyde tank according to claim 1, characterized in that: It also includes an air line connected to the exhaust line.

4. The system for cleaning polymer inside a formaldehyde tank according to claim 1, characterized in that: It also includes a desalinated water pipeline, which is connected to the discharge pipeline.

5. The system for cleaning polymer inside a formaldehyde tank according to claim 1, characterized in that: The length of the telescopic rod can be adjusted between 2 and 8 meters.

6. The system for cleaning polymer inside a formaldehyde tank according to claim 1, characterized in that: The cleaning component is detachably connected to the telescopic rod.

7. The system for cleaning polymer inside a formaldehyde tank according to claim 6, characterized in that: The cleaning component is in the shape of a toothed plate or a flat plate.

8. A cleaning rake for cleaning polymer inside a formaldehyde tank, characterized in that: include: Telescopic rod; as well as, A cleaning component, the cleaning component is mounted on the end of the telescopic rod; The cleaning rake can extend into the formaldehyde tank from the bottom manhole of the formaldehyde tank; the formaldehyde tank comprises a top manhole, the bottom manhole and a bottom discharge port.

9. The cleaning rake according to claim 8, characterized in that The cleaning component is detachably connected to the telescopic rod.

10. The cleaning rake according to claim 8, characterized in that The cleaning component is in the shape of a toothed plate or a flat plate.

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