Liquid paraffin recycling machine

Abstract

The utility model discloses a liquid paraffin recycling machine which comprises a base, one side of the top of the base is fixedly connected with a machine frame, the top of the machine frame is provided with a draw-off pump, the draw-off pump is respectively provided with a fixing pipe and a draw-off pipe, the fixing pipe is fixedly provided with a branch pipe, the branch pipe is provided with two communicating pipes, and the two communicating pipes are communicated with the draw-off pipe. Switch valves are arranged at the positions, corresponding to the two communicating pipes, of the branch pipe, and filtering cavities are formed in the two sides of the rack. According to the utility model, through the arrangement of the two groups of communicating pipes, the switch valves, the filter cavity, the filter screen frame, the branch pipe and the like, one switch valve can be closed firstly, one recovery filter passage is closed, and at the moment, recovered liquid paraffin can be normally filtered and recovered through the passage on the other side; at the moment, the filter screen frame in the filter cavity with the closed channel can be disassembled and cleaned, so that the cleaning convenience of the filter screen frame structure is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chlorinated paraffin production, in particular to a liquid paraffin recovery machine. Background Art

[0002] Chlorinated paraffin is an organic substance, a chlorinated derivative of paraffin hydrocarbons, with the advantages of low volatility, flame retardancy, good electrical insulation, and low price. It can be used as a flame retardant and auxiliary plasticizer for polyvinyl chloride. It is widely used in the production of cable materials, floor materials, hoses, artificial leather, rubber and other products, as well as additives for polyurethane waterproof coatings, polyurethane plastic tracks, lubricating oils, etc. Therefore, the processing and production of chlorinated paraffin is very extensive. Usually, when processing and producing chlorinated paraffin, it is necessary to recycle the liquid paraffin in the tank, so a recycling machine is needed;

[0003] The filtering structure of traditional liquid paraffin recovery machines is mostly installed on the extraction pipe. Although this structure can filter the extracted and recovered liquid paraffin normally, it still has certain defects: 1. There are many residual impurities in the liquid paraffin, so the cleaning frequency of the filtering structure will be relatively high. During the cleaning, the liquid paraffin recovery operation cannot be continued and the machine needs to be stopped for cleaning, which prolongs the recovery time; 2. During cleaning, the pipeline needs to be disassembled to remove the filter element structure for cleaning. The cleaning operation is relatively cumbersome and lacks convenience. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a liquid paraffin recovery machine.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a liquid paraffin recovery machine comprises a base, a top side of the base is fixedly connected to a frame, an extraction pump is arranged on the top of the frame, a fixed pipe and an extraction pipe are respectively arranged on the extraction pump, a branch pipe is fixedly installed on the fixed pipe, two connecting pipes are installed on the branch pipe, and switch valves are arranged on the branch pipe corresponding to the two connecting pipes, filter chambers are arranged on both sides of the frame, the two connecting pipes are connected to the two filter chambers correspondingly, filter mesh frames are arranged in the two filter chambers, a concentration box is arranged in the frame, branch pipes connected to the concentration box are arranged at the bottom of the two filter chambers, a discharge pipe is arranged at the bottom of the concentration box, fixed recesses connected to the filter chambers are arranged on both sides of the outer surface of the frame, closing plates are nested in the two fixed recesses, closing plugs are fixedly connected to the two closing plates, and a fixing mechanism is arranged between the two closing plates and the frame.

[0006] As a further description of the above technical solution:

[0007] The extraction pipe is in the form of a hose.

[0008] As a further description of the above technical solution:

[0009] Both branch pipes are provided with one-way valves.

[0010] As a further description of the above technical solution:

[0011] The two sealing plugs and the two filter chambers are arranged in a nested and sealed manner.

[0012] As a further description of the above technical solution:

[0013] The fixing mechanism includes a fixing box fixedly connected to the closing plate and a fixing plate fixed to the outer surface of the frame, the fixing box is provided with an inner cavity, a movable block and a spring are respectively provided in the inner cavity, an insert plate is fixedly connected to the side of the outer surface of the movable block away from the spring, and a pull rod is fixedly connected to the side of the outer surface of the movable block that is the same as the spring, one end of the pull rod is fixedly connected to a pull ring, and a slot is provided on the fixing plate.

[0014] As a further description of the above technical solution:

[0015] The plug board and the slot are plug-fitted.

[0016] As a further description of the above technical solution:

[0017] The fixing boxes on the closing plate and the fixing plates on the outer surface of the frame are arranged in two groups correspondingly and symmetrically distributed up and down.

[0018] The utility model has the following beneficial effects:

[0019] The liquid paraffin recovery machine can conveniently extract and recover the liquid paraffin in the tank during the production of chlorinated paraffin by means of the coordinated arrangement of the extraction pump, extraction pipe, fixed pipe, branch pipe, connecting pipe, filter chamber, branch pipe, central box, feeding pipe and other structures. With the arrangement of the filter mesh frame, the recovered liquid paraffin can be automatically filtered, and the residual impurities in the liquid paraffin can be effectively filtered out. By means of the arrangement of two groups of connecting pipes, switch valves, filter chamber, filter mesh frame, branch pipe and other structures, one of the switch valves can be closed first, and one of the recovery and filtration passages can be closed. At this time, the recovered liquid paraffin can be filtered back normally through the passage on the other side. The filter mesh frame in the filter chamber with the closed passage can be disassembled and cleaned at this time. The entire structure can realize non-stop cleaning without consuming extra cleaning time, which greatly improves the convenience of cleaning the filter mesh frame structure. Through the setting of the closing plate, the closing plug and the fixing mechanism, the filter chamber position can be stably closed, so that the filtering and recovery of liquid paraffin can be carried out normally in the filter chamber, and the filter structure can also be conveniently opened to facilitate the cleaning of the filter mesh frame. The structure does not require the use of operating tools, nor does it require the troublesome operation of disassembling the pipeline. The operation saves time and effort, which greatly improves the convenience of cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a liquid paraffin recovery machine proposed by the utility model;

[0021] Figure 2 This is a front view of a liquid paraffin recovery machine proposed by the utility model;

[0022] Figure 3 A liquid paraffin recovery machine proposed by the utility model Figure 2 A is an enlarged view of the middle image.

[0023] Legend:

[0024] 1. Base; 2. Frame; 3. Extraction pump; 4. Fixed pipe; 5. Extraction pipe; 6. Branch pipe; 7. Connecting pipe; 8. Switch valve; 9. Filter chamber; 10. Filter mesh frame; 11. Branch pipe; 12. Concentrator box; 13. Check valve; 14. Feeding pipe; 15. Fixed notch; 16. Closing plate; 17. Closing plug; 18. Fixed box; 19. Inner chamber; 20. Movable block; 21. Spring; 22. Insert plate; 23. Pull rod; 24. Pull ring; 25. Fixed plate; 26. Slot. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] Reference Figure 1-3, the utility model provides an embodiment: a liquid paraffin recovery machine, including a base 1, a frame 2 is fixedly connected to one side of the top of the base 1, an extraction pump 3 is arranged on the top of the frame 2, a fixed pipe 4 and an extraction pipe 5 are respectively arranged on the extraction pump 3, the extraction pipe 5 is in the form of a hose, the extraction pipe 5 is located at the liquid inlet end of the extraction pump 3, and the fixed pipe 4 is located at its liquid outlet end. When the extraction pump 3 is working, the liquid paraffin can be drawn into the extraction pipe 5 from the position and sent into the fixed pipe 4, a branch pipe 6 is fixedly installed on the fixed pipe 4, two connecting pipes 7 are installed on the branch pipe 6, and switch valves 8 are arranged on the branch pipe 6 at positions corresponding to the two connecting pipes 7. The setting of the two switch valves 8 can conveniently control the opening and closing of the passages of the two connecting pipes 7, and filter chambers 9 are arranged at both sides of the frame 2, and the two connecting pipes 7 are connected to the two filter chambers 9 accordingly. The extracted liquid paraffin enters the branch pipe 6 through the fixed pipe 4, and then enters the two filter chambers 9 through the two connecting pipes 7. To perform filtering, filter racks 10 are provided in the two filter chambers 9, a centralizing box 12 is provided in the frame 2, branch pipes 11 connected to the centralizing box 12 are provided at the bottom of the two filter chambers 9, a discharge pipe 14 is provided at the bottom of the centralizing box 12, and fixed recesses 15 connected to the filter chamber 9 are provided on both sides of the outer surface of the frame 2. One side of the filter chamber 9 is in an open form, and the fixed recess 15 is located at a position corresponding to the opening. Closing plates 16 are nested in the two fixed recesses 15, and closing plugs 17 are fixedly connected to the two closing plates 16. The two closing plugs 17 and the two filter chambers 9 are nested and sealed. A fixing mechanism is provided between the two closing plates 16 and the frame 2. The setting of the closing plates 16 and the closing plugs 17 can stably close one side of the filter chamber 9, and the setting of the fixing mechanism can ensure the stability of the structural closure. At the same time, the structure can also be easily opened, which is convenient for removing and cleaning the filter rack 10.

[0028] A one-way valve 13 is provided on each of the two branch pipes 11. When one of the switch valves 8 is closed, the passages of the connecting pipe 7, the filter chamber 9 and the branch pipe 11 are closed, and the liquid paraffin flows from the other passage for recovery and filtration. The setting of the one-way valve 13 can prevent the liquid entering the concentration box 12 from overflowing back into the branch pipe 11 of the closed passage.

[0029] The fixing mechanism includes a fixing box 18 fixedly connected to the closing plate 16 and a fixing plate 25 fixed to the outer surface of the frame 2. The fixing box 18 is provided with an inner cavity 19, and a movable block 20 and a spring 21 are respectively provided in the inner cavity 19. The outer surface of the movable block 20 is fixedly connected to a plug plate 22 on the side away from the spring 21, and the outer surface of the movable block 20 is fixedly connected to the same side as the spring 21. A pull rod 23 is fixedly connected to one end of the pull rod 23. A pull ring 24 is fixedly connected to one end of the pull rod 23. One end of the pull rod 23 passes through one side of the inner wall of the inner cavity 19 and extends to the outer side of the fixing box 18. The pull ring 24 is located outside the fixing box 18. On the side, a slot 26 is provided on the fixed plate 25, and the plug plate 22 and the slot 26 are plug-in matched. During operation, the pull ring 24 is pulled, and the pull ring 24 drives the movable block 20 to compress the spring 21 through the pull rod 23, and also drives the plug plate 22 to contract. When the closing plate 16 is inserted into the fixed recess 15, the pull ring 24 is released, and the spring 21 is reset to push the movable block 20 to drive the plug plate 22 to be inserted into the slot 26, and the installation of the fixing mechanism is completed, so that the closing plate 16 can be stably installed. Similarly, the fixing mechanism can be easily opened during operation, and the closing plate 16 can be conveniently taken out.

[0030] There are two sets of fixing boxes 18 on the closing plate 16 and fixing plates 25 on the outer surface of the frame 2, which are symmetrically distributed up and down. The two sets of structures can ensure the stability of the positioning and installation of the closing plate 16.

[0031] Working principle: When using the liquid paraffin recovery machine, place one end of the extraction pipe 5 into the tank with recovered liquid paraffin. When the extraction pump 3 is working, the liquid paraffin is extracted through the extraction pipe 5 and the fixed pipe 4 into the branch pipe 6, and then into the filter chamber 9 through the connecting pipe 7. When the liquid paraffin passes through the filter rack 10, it can be filtered to filter out the residual impurities in the liquid paraffin. The filtered liquid paraffin enters the concentration box 12 through the branch pipe 11 and is finally discharged from the discharge pipe 14. The recovery tank is placed on the base 1 so that its inlet is aligned with the discharge pipe 14 to receive the recovered liquid paraffin. When it is necessary to clean the filter rack 10, close it. By closing the switch valve 8 on one side, the connecting pipe 7, the filter chamber 9, and the branch pipe 11 can be closed, and the liquid paraffin will flow normally from the other passage, and the filtering and recovery of the liquid paraffin can continue. The fixing mechanism on the closing plate 16 corresponding to the closed filter chamber 9 is opened, the closing plate 16 is removed, and the filter rack 10 is taken out, and the residual impurities in the filter rack 10 can be conveniently filtered. After cleaning, the structure can be reinstalled in the same way without stopping, and the filter rack 10 on the other side can be cleaned in the same way. The structure can realize convenient cleaning without stopping the machine, and the filter structure is easy to disassemble and clean, and is very flexible and convenient to use.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A liquid paraffin recovery machine, comprising a base (1), characterized in that: A frame (2) is fixedly connected to one side of the top of the base (1), an extraction pump (3) is arranged on the top of the frame (2), a fixed pipe (4) and an extraction pipe (5) are respectively arranged on the extraction pump (3), a branch pipe (6) is fixedly installed on the fixed pipe (4), two connecting pipes (7) are installed on the branch pipe (6), and a switch valve (8) is arranged at the corresponding positions of the branch pipe (6) and the two connecting pipes (7), and filter chambers (9) are arranged at both sides of the frame (2), the two connecting pipes (7) are connected to the two filter chambers (9) correspondingly, and the two filter chambers (9) have a filter chamber (9) in the two connecting pipes (7). A filter mesh frame (10) is provided, a centralizing box (12) is provided in the frame (2), a branch pipe (11) connected to the centralizing box (12) is provided at the bottom of the two filter chambers (9), a feed pipe (14) is provided at the bottom of the centralizing box (12), and a fixing recess (15) connected to the filter chamber (9) is provided on both sides of the outer surface of the frame (2), a closing plate (16) is nested in the two fixing recesses (15), a closing plug (17) is fixedly connected to the two closing plates (16), and a fixing mechanism is provided between the two closing plates (16) and the frame (2).

2. A liquid paraffin recovery machine according to claim 1, characterized in that: The extraction pipe (5) is in the form of a hose.

3. A liquid paraffin recovery machine according to claim 1, characterized in that: Both branch pipes (11) are provided with a one-way valve (13).

4. The liquid paraffin recovery machine according to claim 1, characterized in that: The two sealing plugs (17) and the two filter chambers (9) are arranged in a nested and sealed manner.

5. The liquid paraffin recovery machine according to claim 1, characterized in that: The fixing mechanism comprises a fixing box (18) fixedly connected to a closing plate (16) and a fixing plate (25) fixed to the outer surface of a frame (2); an inner cavity (19) is arranged in the fixing box (18); a movable block (20) and a spring (21) are arranged in the inner cavity (19); a plug plate (22) is fixedly connected to the outer surface of the movable block (20) on a side away from the spring (21); a pull rod (23) is fixedly connected to the outer surface of the movable block (20) on the same side as the spring (21); a pull ring (24) is fixedly connected to one end of the pull rod (23); and a slot (26) is arranged on the fixing plate (25).

6. A liquid paraffin recovery machine according to claim 5, characterized in that: The plug board (22) and the slot (26) are plug-fitted.

7. The liquid paraffin recovery machine according to claim 5, characterized in that: Two groups of fixing boxes (18) on the closing plate (16) and fixing plates (25) on the outer surface of the frame (2) are arranged correspondingly and are symmetrically distributed up and down.

Images