Automatic cleaning device for pentachloropyridine conveying pipeline

Abstract

The utility model discloses an automatic cleaning device of pentachloropyridine delivery pipeline, relates to pentachloropyridine technical field, including tail gas pipeline and T-shaped buffer tube, be equipped with the cleaning mechanism in the inner cavity of tail gas pipeline, cleaning mechanism includes control room, control room is fixed connection to tail gas pipeline top, the T-shaped buffer tube is equipped with the T-shaped buffer tube, the control room is equipped with the T-shaped buffer tube, and the T-shaped buffer tube is equipped with the T-shaped buffer tube. The top of an inner cavity of the control chamber is fixedly connected with a servo motor, the output end of the servo motor is fixedly connected with a gear motor, and the output end of the gear motor is fixedly connected with a rotating shaft. The rotary shaft is arranged on the tail gas pipeline, the scraping plate and the scraping piece are driven to rotate through rotation of the rotary shaft, the scraping piece scrapes crystals attached to the inner wall of the tail gas pipeline, the problem that the tail gas pipeline is blocked due to too many crystals is solved, abnormal production caused by blocking is avoided, and the automatic production efficiency of pentachloropyridine is improved.

Description

Technical Field

[0001] The utility model relates to an automatic cleaning device for a pentachloropyridine conveying pipeline, in particular to an automatic cleaning device for a pentachloropyridine conveying pipeline, and belongs to the technical field of pentachloropyridine. Background Art

[0002] Pentachloropyridine is an important pesticide intermediate, which can be used in the synthesis of the new broad-spectrum insecticide chlorpyrifos, a pharmaceutical intermediate, and can be used in the production of cardiovascular, cerebrovascular and other drug raw materials, and an organic synthesis reaction intermediate;

[0003] The reaction tail gas generated in the production process of pentachloropyridine contains hydrogen chloride gas, chlorine gas, nitrogen gas, etc. Pentachloropyridine liquid has sublimation characteristics at high temperature and condensation characteristics at normal temperature. In the production process of pentachloropyridine, after the reaction is completed, the pentachloropyridine is captured by the product receiving tank, the primary collector, the secondary collector and other equipment. Most of the pentachloropyridine is collected in the above equipment. Chloropyridine gas will condense when encountering a normal temperature pipeline. A trace amount of pentachloropyridine powder enters the tail gas pipeline with the reaction tail gas and forms crystals on the inner wall of the tail gas pipeline. The crystals adhere to the wall of the tail gas pipeline and are not easy to clean. Over time, the tail gas pipeline will be blocked, resulting in production abnormalities. Therefore, the tail gas pipeline needs to be cleaned regularly. Manual cleaning of the tail gas pipeline is labor-intensive, which increases the time cost and labor intensity of the operator. Summary of the invention

[0004] The utility model aims to provide an automatic cleaning device for pentachloropyridine conveying pipeline, so as to solve the problem that the crystals attached to the pipe wall of the tail gas pipeline are difficult to clean and will block the tail gas pipeline over time, thus causing production abnormality.

[0005] To achieve the above object, the utility model provides the following technical solutions: an automatic cleaning device for a pentachloropyridine delivery pipeline, comprising an exhaust pipeline and a T-shaped buffer tube, a cleaning mechanism is arranged in the inner cavity of the exhaust pipeline, the cleaning mechanism comprises a control room, the control room is fixedly connected to the top of the exhaust pipeline, a servo motor is fixedly connected to the top of the inner cavity of the control room, the output end of the servo motor is fixedly connected to a reduction motor, the output end of the reduction motor is fixedly connected to a rotating shaft, and scrapers are fixedly connected around the outer surface of the rotating shaft;

[0006] A disassembly mechanism is arranged on the outside of the T-shaped buffer tube, and the disassembly mechanism includes an exhaust pipe, an annular clamping block is fixedly connected to the left side of the exhaust pipe, and an annular clamping groove is opened on the right side of the T-shaped buffer tube, and the annular clamping block is clamped in the inner cavity of the annular clamping groove.

[0007] Preferably, a scraper blade is fixedly connected to the outer side of the scraper, and a notch is provided on the outer surface of the scraper.

[0008] Preferably, both the front and rear sides of the right end of the T-shaped buffer tube are provided with insertion holes, and both the front and rear sides of the annular clamping block are provided with slots.

[0009] Preferably, a device box is fixedly connected to the front and rear sides of the right end of the T-shaped buffer tube, the outer sides of the inner cavities of the two device boxes are fixedly connected to return springs, and the inner sides of the two return springs are fixedly connected to movable plates.

[0010] Preferably, an insert rod is fixedly connected to the inner side of the movable plate, and a pull rod is fixedly connected to the right sides of the two movable plates.

[0011] Preferably, sliders are fixedly connected to the upper and lower sides of the movable plate, sliding grooves are provided on the upper and lower sides of the inner cavity of the device box, and the outer sides of the two sliders are slidably connected to the inner cavities of the two sliding grooves.

[0012] Preferably, the upper and lower sides of the middle end of the outer surface of the exhaust pipe are fixedly connected with a first flange, the upper and lower sides of the T-shaped buffer pipe are fixedly connected with a second flange, and the two first flanges and the two second flanges are threadedly connected with positioning bolts.

[0013] Compared with the related art, the automatic cleaning device for pentachloropyridine conveying pipeline provided by the utility model has the following beneficial effects:

[0014] 1. The servo motor and the reduction motor are used to drive the rotating shaft to rotate, and the rotation of the rotating shaft drives the scraper and the scraper blade to rotate. The scraper blade scrapes off the crystals attached to the inner wall of the tail gas pipeline, which solves the problem of tail gas pipeline blockage caused by too many crystals, avoids production abnormalities caused by blockage, and improves the automatic production efficiency of pentachloropyridine;

[0015] 2. The exhaust pipe and the T-shaped buffer pipe can be disassembled and connected by setting the first flange, the second flange and the positioning bolts. The T-shaped buffer pipe can reserve a part of the condensation space in the exhaust pipe, and can be disassembled and cleaned at a certain stage. By pulling the pull rod outward, the movable plate squeezes the reset spring to deform the reset spring, driving the plug rod and the slot to release the limit and detach from the inner cavity of the plug hole, and pulling the exhaust pipe outward to complete the disassembly of the exhaust pipe. The disassembly and assembly are convenient and more suitable for people's use. Since most of the pentachloropyridine in the exhaust pipe has been condensed, the cleaning of the T-shaped buffer pipe and the exhaust pipe is not frequent. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure of the T-shaped buffer pipe and the exhaust pipe of the utility model in a disassembled state;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the exhaust gas pipeline and the control room of the utility model;

[0019] Figure 4 The utility model is a schematic diagram of the disassembly mechanism structure.

[0020] In the figure: 1. exhaust pipe; 2. cleaning mechanism; 201. control room; 202. servo motor; 203. reduction motor; 204. rotating shaft; 205. scraper; 206. scraper; 207. notch; 3. T-shaped buffer tube; 4. first flange; 5. second flange; 6. positioning bolt; 7. disassembly mechanism; 701. exhaust pipe; 702. annular block; 703. annular groove; 704. socket; 705. slot; 706. device box; 707. reset spring; 708. movable plate; 709. plug rod; 710. pull rod; 711. slider; 712. slide groove. DETAILED DESCRIPTION

[0021] 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. Example

[0022] See also Figure 1-4 The utility model provides an automatic cleaning device for a pentachloropyridine delivery pipeline, comprising a cleaning mechanism 2 and a disassembly mechanism 7;

[0023] See also Figure 2 , Figure 3 The cleaning mechanism 2 includes a control room 201, which is fixedly connected to the top of the exhaust pipe 1, and a servo motor 202 is fixedly connected to the top of the inner cavity of the control room 201, and a reduction motor 203 is fixedly connected to the output end of the servo motor 202, and a rotating shaft 204 is fixedly connected to the output end of the reduction motor 203, and a scraper 205 is fixedly connected to the outer surface of the rotating shaft 204;

[0024] See also Figure 2 , Figure 3 , a scraper blade 206 is fixedly connected to the outer side of the scraper 205, and a notch 207 is provided on the outer surface of the scraper 205;

[0025] Specifically, the servo motor 202 and the reduction motor 203 are configured to drive the rotating shaft 204 to rotate, and the rotation of the rotating shaft 204 drives the scraper 205 and the scraper blade 206 to rotate. The scraper blade 206 scrapes off the crystals attached to the inner wall of the exhaust pipe 1. The scraper blade 206 makes the cleaning effect better, and the notch 207 can prevent the exhaust pipe 1 from having excessive damping and causing pressure increase.

[0026] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 The disassembly mechanism 7 includes an exhaust pipe 701, a ring-shaped clamping block 702 is fixedly connected to the left side of the exhaust pipe 701, and a ring-shaped clamping groove 703 is opened on the right side of the T-shaped buffer tube 3, and the ring-shaped clamping block 702 is clamped in the inner cavity of the ring-shaped clamping groove 703;

[0027] The front and rear sides of the right end of the T-shaped buffer tube 3 are provided with insertion holes 704, and the front and rear sides of the annular block 702 are provided with slots 705;

[0028] The front and rear sides of the right end of the T-shaped buffer tube 3 are fixedly connected with device boxes 706, the outer sides of the inner cavities of the two device boxes 706 are fixedly connected with return springs 707, and the inner sides of the two return springs 707 are fixedly connected with movable plates 708;

[0029] The inner side of the movable plate 708 is fixedly connected with an insertion rod 709, and the right sides of the two movable plates 708 are fixedly connected with a pull rod 710;

[0030] The upper and lower sides of the movable plate 708 are fixedly connected with sliders 711, and the upper and lower sides of the inner cavity of the device box 706 are provided with slide grooves 712, and the outer sides of the two sliders 711 are slidably connected to the inner cavities of the two slide grooves 712.

[0031] Specifically, by pulling the pull rod 710 outward, the movable plate 708 squeezes the reset spring 707, causing the reset spring 707 to deform. During the process of the movable plate 708 squeezing the reset spring 707, the slider 711 is slidably connected to the inner cavity of the slide groove 712, so that the movement process of the movable plate 708 is more stable, driving the insertion rod 709 and the slot 705 to release the limit, and detach from the inner cavity of the socket 704, and pulling the exhaust pipe 701 outward to complete the disassembly of the exhaust pipe 701. The disassembly and assembly are convenient, and it is more suitable for people's use. Since most of the pentachloropyridine in the exhaust pipe 1 has been condensed, the cleaning work of the T-shaped buffer tube 3 and the exhaust pipe 701 is not frequent.

[0032] See also Figure 1 , Figure 2The first flange 4 is fixedly connected to the upper and lower sides of the middle end of the outer surface of the exhaust pipe 1, and the second flange 5 is fixedly connected to the upper and lower sides of the T-shaped buffer pipe 3. The two first flanges 4 and the two second flanges 5 are threadedly connected with positioning bolts 6.

[0033] Specifically, the exhaust pipe 1 and the T-shaped buffer pipe 3 can be disassembled and connected by setting the first flange 4, the second flange 5 and the positioning bolts 6. The T-shaped buffer pipe 3 can reserve a part of the condensation space in the exhaust pipe 701, and can be disassembled and cleaned at a certain stage.

[0034] Working principle: a small amount of pentachloropyridine powder enters the tail gas pipeline 1 along with the reaction tail gas, and forms crystals on the inner wall of the tail gas pipeline 1. The servo motor 202 and the reduction motor 203 cooperate to drive the rotating shaft 204 to rotate, and the rotation of the rotating shaft 204 drives the scraper 205 and the scraper 206 to rotate. The scraper 206 scrapes off the crystals attached to the inner wall of the tail gas pipeline 1. The tail gas pipeline 1 and the T-shaped buffer tube 3 can be disassembled by the cooperation of the first flange 4, the second flange 5 and the positioning bolt 6. By pulling the pull rod 710 outward, the movable plate 708 squeezes the reset spring 707 to deform the reset spring 707, driving the insertion rod 709 and the slot 705 to release the limit and disengage from the socket 7. 04's inner cavity, want to pull the exhaust pipe 701 to the outside to complete the disassembly of the exhaust pipe 701, because most of the pentachloropyridine in the exhaust pipe 1 has been condensed, the cleaning work of the T-shaped buffer tube 3 and the exhaust pipe 701 is not frequent, when the cleaning is completed, the exhaust pipe 1 can be connected to the T-shaped buffer tube 3 through the cooperation of the first flange 4, the second flange 5 and the positioning bolt 6, the annular block 702 is clamped in the inner cavity of the annular groove 703, the pull rod 710 is released, and the reset spring 707 is deformed again due to the loss of force, driving the insertion rod 709 to be inserted into the inner cavity of the slot 705 through the socket 704, completing the fixation of the exhaust pipe 701, and the disassembly and assembly are convenient, which is more suitable for people's use.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic cleaning device for a pentachloropyridine delivery pipeline, comprising an exhaust pipeline (1) and a T-shaped buffer tube (3), characterized in that: A cleaning mechanism (2) is arranged in the inner cavity of the exhaust gas pipeline (1), the cleaning mechanism (2) comprising a control chamber (201), the control chamber (201) being fixedly connected to the top of the exhaust gas pipeline (1), a servo motor (202) being fixedly connected to the top of the inner cavity of the control chamber (201), an output end of the servo motor (202) being fixedly connected to a reduction motor (203), an output end of the reduction motor (203) being fixedly connected to a rotating shaft (204), and scrapers (205) being fixedly connected around the outer surface of the rotating shaft (204); A disassembly mechanism (7) is arranged on the outside of the T-shaped buffer tube (3), the disassembly mechanism (7) comprising an exhaust pipe (701), an annular clamping block (702) is fixedly connected to the left side of the exhaust pipe (701), an annular clamping groove (703) is provided on the right side of the T-shaped buffer tube (3), and the annular clamping block (702) is clamped in the inner cavity of the annular clamping groove (703).

2. The automatic cleaning device for pentachloropyridine delivery pipeline according to claim 1, characterized in that: A scraper blade (206) is fixedly connected to the outer side of the scraper plate (205), and a notch (207) is provided on the outer surface of the scraper plate (205).

3. The automatic cleaning device for pentachloropyridine delivery pipeline according to claim 1, characterized in that: Insertion holes (704) are provided at both the front and rear sides of the right end of the T-shaped buffer tube (3), and slots (705) are provided at both the front and rear sides of the annular clamping block (702).

4. The automatic cleaning device for pentachloropyridine delivery pipeline according to claim 1, characterized in that: The front and rear sides of the right end of the T-shaped buffer tube (3) are fixedly connected to a device box (706), the outer sides of the inner cavities of the two device boxes (706) are fixedly connected to return springs (707), and the inner sides of the two return springs (707) are fixedly connected to a movable plate (708).

5. The automatic cleaning device for pentachloropyridine delivery pipeline according to claim 4, characterized in that: An insert rod (709) is fixedly connected to the inner side of the movable plate (708), and a pull rod (710) is fixedly connected to the right sides of the two movable plates (708).

6. The automatic cleaning device for pentachloropyridine delivery pipeline according to claim 4, characterized in that: The movable plate (708) is fixedly connected to sliders (711) on both upper and lower sides, the inner cavity of the device box (706) is provided with slide grooves (712) on both upper and lower sides, and the outer sides of the two sliders (711) are slidably connected to the inner cavities of the two slide grooves (712).

7. The automatic cleaning device for pentachloropyridine delivery pipeline according to claim 1, characterized in that: The first flanges (4) are fixedly connected to the upper and lower sides of the middle end of the outer surface of the exhaust pipe (1), the second flanges (5) are fixedly connected to the upper and lower sides of the T-shaped buffer pipe (3), and the two first flanges (4) and the two second flanges (5) are threadedly connected with positioning bolts (6).

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