Reaction kettle for producing monochloroacetone

Abstract

The utility model discloses a reaction kettle for producing monochloroacetone, and particularly relates to the technical field of reaction kettles, which comprises a bottom plate, a reaction tank is supported on the top of the bottom plate through a support, a sealing cover is arranged on one side of the reaction tank, a sealing ring is arranged on one side of the sealing cover, and a moving mechanism for driving the sealing cover to move is arranged on the top of the bottom plate. A gas inlet pipe is fixedly communicated with one side of the sealing cover, a feeding pipe is fixedly communicated with the top of the reaction tank, a collecting box is arranged at the top of the bottom plate, the moving mechanism comprises a limiting plate arranged outside the reaction tank, connecting plates are fixedly arranged on the two sides of the sealing cover, and one ends of the connecting plates are fixedly connected with the limiting plate. Supporting plates are fixedly arranged on the two sides of the limiting plate. Through the sealing cover, a worker can conveniently clean residues on the surface of the mixing mechanism, the next reaction efficiency is prevented from being influenced, hydrogen chloride can be recycled through the purification mechanism, and the surrounding environment is prevented from being polluted.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of reaction kettle, concretely relates to a reaction kettle for producing monochloroacetone. BACKGROUND

[0002] Chloroacetone is an organic compound with the chemical formula CHClO, mainly used as an organic synthesis intermediate for the production of dyes, pesticides, medicines, spices, antioxidants, drying agents, ethylene-type photosensitive resins, color film coupling agents, etc. Chloroacetone needs to be reacted and processed using a reaction kettle during processing and production.

[0003] For example, the chloroacetone chlorination reaction kettle provided in Chinese patent application No. 202321997277.7 includes a reaction tank, a feed pipe connected to one side of the reaction tank, a discharge pipe connected to the bottom end of the reaction tank, a rotating rod rotatably connected to the top end of the reaction tank, and a plurality of stirring rods evenly distributed on the outer side wall of the rotating rod. The technical solution drives the stirring rods and spiral stirring blades to stir and mix the chloroacetone raw materials, which can make the chloroacetone raw materials mix more uniformly, ensure the reaction effect of chloroacetone, and scrape the chloroacetone raw materials adhered to the inner wall of the reaction tank through the wall scraping assembly, which can prevent the chloroacetone raw materials from agglomerating on the inner wall of the reaction tank for a long time, make the chloroacetone reaction more complete and uniform, and further improve the reaction effect of the reaction kettle on the chloroacetone raw materials.

[0004] However, the technical solution still has the following problems: the wall scraping assembly scrapes the chloroacetone raw materials adhered to the inner wall of the reaction tank, but since the reaction tank is sealed, the surface of the wall scraping assembly cannot be cleaned, which can affect the reaction effect of the next reaction. INVENTION CONTENTS

[0005] The utility model aims at providing a reaction kettle for producing monochloroacetone, which can clean the surface of the mixing mechanism through the sealing cover to avoid affecting the reaction efficiency of the next reaction, and can recycle hydrogen chloride through the purification mechanism to avoid polluting the surrounding environment, thereby solving the above problems in the art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a reaction kettle for producing monochloroacetone, including a bottom plate, a reaction tank supported on the top of the bottom plate through a support, a sealing cover arranged on one side of the reaction tank, a sealing ring arranged on one side of the sealing cover, a moving mechanism arranged on the top of the bottom plate to move the sealing cover, an air inlet pipe fixedly connected to one side of the sealing cover, a feed pipe fixedly connected to the top of the reaction tank, and a collection box arranged on the top of the bottom plate.

[0007] Preferably, the moving mechanism comprises a limiting plate arranged outside the reaction tank, connecting plates fixed on both sides of the sealing cover, one end of the connecting plate being fixedly connected with the limiting plate, supporting plates fixed on both sides of the limiting plate, two threaded rods movably connected with the bottom plate through bearings, moving blocks threadedly connected with the threaded rods, the moving blocks being fixedly connected with the bottom of the supporting plate, and the moving blocks being used to drive the sealing cover to move.

[0008] Preferably, one end of the threaded rod penetrates a belt pulley, the same belt is sleeved on the two belt pulleys, a first rotating shaft is movably connected with the bottom plate through a bearing, a bevel gear is arranged at the bottom end of the first rotating shaft and one end of the threaded rod, the two bevel gears are in meshing engagement, the bevel gears are movably connected with the bottom plate through bearings, and the first motor is fixedly arranged at the top end of the bevel gear, so as to drive the sealing cover to move.

[0009] Preferably, the bottom plate is provided with a purification mechanism for recycling the gas generated in the production of monochloroacetone, the purification mechanism comprises a connecting pipe fixedly and communicatively arranged on one side of the reaction tank, a containing box arranged on the top of the bottom plate, a collecting barrel arranged in the containing box, the connecting pipe extending into the collecting barrel, a gas outlet pipe fixedly and communicatively arranged on one side of the collecting barrel, one end of the gas outlet pipe penetrating the containing box and extending out of one side of the containing box, a hydrogen chloride recovery tank fixedly and communicatively arranged at one end of the gas outlet pipe, a second water outlet pipe fixedly and communicatively arranged at one end of the collecting barrel, one end of the second water outlet pipe penetrating the containing box and extending out of one side of the containing box, a water inlet pipe fixedly and communicatively arranged on the top of the containing box, and a first water outlet pipe fixedly and communicatively arranged on one side of the containing box, so as to recycle the gas generated in the production of monochloroacetone.

[0010] Preferably, the bottom plate is provided with a mixing mechanism for mixing acetone and chlorine gas, the mixing mechanism comprises a second rotating shaft arranged in the reaction tank, a cleaning scraper fixedly arranged at one end of the second rotating shaft, a plurality of stirring rods arranged on the outer side of the second rotating shaft, the second rotating shaft penetrating the sealing cover and extending out of one side of the sealing cover, the second rotating shaft being movably connected with the sealing cover through a bearing, and a second motor fixedly arranged at one end of the second rotating shaft, so as to mix the acetone and the chlorine gas.

[0011] In the above technical solution, the technical effects and advantages of the utility model are as follows:

[0012] 1. Start the first motor, the first motor can drive the threaded rod to rotate, the threaded rod can drive the moving block to move, the moving block can drive the limiting plate to move, the limiting plate can drive the sealing cover to move, the mixing mechanism is pulled out of the reaction tank by the sealing cover, the residual on the surface of the mixing mechanism is cleaned by the staff, and the influence on the reaction efficiency of the next time is avoided.

[0013] 2, in the process of acetone and chlorine, monochloroacetone and hydrogen chloride are produced, hydrogen chloride enters the inside of the collection barrel through the connecting pipe, the cooling water in the holding box can cool the hydrogen chloride in the inside of the collection barrel, the liquid produced by condensing part of the substances in the hydrogen chloride is stored in the inside of the collection barrel, and tail gas enters the inside of the hydrogen chloride recovery tank through the gas outlet pipe and is treated. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0015] Figure 1 It is a front view of the present application;

[0016] Figure 2 It is a rear view of the present application;

[0017] Figure 3 It is a structure schematic view of the moving mechanism of the present application;

[0018] Figure 4 It is a structure schematic view of the mixing mechanism of the present application;

[0019] Figure 5 It is a structure schematic view of the purification mechanism of the present application;

[0020] Figure 6 It is a cross-sectional view of the holding box of the present application.

[0021] Explanation of reference signs:

[0022] 1 bottom plate, 2 reaction tank, 3 sealing cover,

[0023] 4 moving mechanism, 401 limiting plate, 402 connecting plate, 403 supporting plate, 404 threaded rod, 405 moving block, 406 belt pulley, 407 belt, 408 first rotating shaft, 409 bevel gear, 410 first motor;

[0024] 5 purification mechanism, 501 connecting pipe, 502 holding box, 503 collection barrel, 504 water inlet pipe, 505 first water outlet pipe, 506 hydrogen chloride recovery tank, 507 gas outlet pipe, 508 second water outlet pipe;

[0025] 6 mixing mechanism, 601 second rotating shaft, 602 cleaning scraper, 603 stirring rod, 604 second motor;

[0026] 7 air inlet pipe, 8 feeding pipe, 9 collection box. DETAILED DESCRIPTION

[0027] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0028] This utility model provides, for example Figures 1-6 The reactor shown is used for producing monochloroacetone and includes a base plate 1. A reaction vessel 2 is supported on the top of the base plate 1 by a bracket. A sealing cover 3 is provided on one side of the reaction vessel 2. A sealing ring is provided on one side of the sealing cover 3. A moving mechanism 4 is provided on the top of the base plate 1 to move the sealing cover 3. An air inlet pipe 7 is fixedly connected to one side of the sealing cover 3. A feed pipe 8 is fixedly connected to the top of the reaction vessel 2. A collection box 9 is provided on the top of the base plate 1.

[0029] like Figure 4 As shown, the bottom plate 1 is provided with a mixing mechanism 6 for mixing acetone and chlorine. The mixing mechanism 6 includes a second rotating shaft 601 located inside the reaction vessel 2. A cleaning scraper 602 is fixedly provided at one end of the second rotating shaft 601. Multiple stirring rods 603 are provided outside the second rotating shaft 601. One end of the second rotating shaft 601 passes through the sealing cover 3 and extends out of one side of the sealing cover 3. The second rotating shaft 601 and the sealing cover 3 are movably connected by bearings. A second motor 604 is fixedly provided at one end of the second rotating shaft 601.

[0030] Acetone is poured into the reaction vessel 2 through the feed pipe 8, and chlorine gas is introduced into the reaction vessel 2 through the gas inlet pipe 7. The sealing ring on one side of the sealing cover 3 can prevent acetone or chlorine gas from being discharged from the reaction vessel 2. The second motor 604 is started, which can drive the second rotating shaft 601 to rotate. The rotation of the second rotating shaft 601 can rotate the stirring rod 603. The rotation of the stirring rod 603 can fully mix the acetone and chlorine gas. The full reaction of acetone and chlorine gas will produce monochloroacetone and hydrogen chloride.

[0031] like Figure 5As shown, the bottom plate 1 top is provided with a purification mechanism 5 for recovering the gas generated in the production of chloroacetone, the purification mechanism 5 includes a connecting pipe 501 fixedly connected on one side of the reaction tank 2, the top of the bottom plate 1 is provided with a containing box 502, the containing box 502 is internally provided with a collecting barrel 503, the bottom end of the connecting pipe 501 extends into the inside of the collecting barrel 503, the collecting barrel 503 is fixedly communicated with a gas outlet pipe 507 on one side, the gas outlet pipe 507 extends out of the containing box 502 on one side, the gas outlet pipe 507 is fixedly communicated with a hydrogen chloride recovery tank 506 on one end, the collecting barrel 503 is fixedly communicated with a second water outlet pipe 508 on one end, the second water outlet pipe 508 extends out of the containing box 502 on one side, the containing box 502 is fixedly communicated with a water inlet pipe 504 on the top, the containing box 502 is fixedly communicated with a first water outlet pipe 505 on one side;

[0032] The cooling water is poured into the containing box 502 through the water inlet pipe 504, the hydrogen chloride enters the inside of the collecting barrel 503 through the connecting pipe 501, the cooling water in the containing box 502 can cool the hydrogen chloride in the inside of the collecting barrel 503, the liquid produced by condensing part of the substances in the hydrogen chloride is stored in the inside of the collecting barrel 503, and the tail gas enters the inside of the hydrogen chloride recovery tank 506 through the gas outlet pipe 507 for recovery treatment.

[0033] As shown in Figure 3 The moving mechanism 4 includes a limiting plate 401 arranged outside the reaction tank 2, the sealing cover 3 is fixedly provided with a connecting plate 402 on both sides, one end of the connecting plate 402 is fixedly connected with the limiting plate 401, supporting plates 403 are fixedly arranged on both sides of the limiting plate 401, two threaded rods 404 are movably connected in the inside of the bottom plate 1 through bearings, a moving block 405 is threadedly connected outside the threaded rod 404, and the moving block 405 is fixedly connected with the bottom of the supporting plate 403 on the top;

[0034] As shown in Figure 3 One end of the threaded rod 404 penetrates a belt pulley 406, the same belt 407 is sleeved outside the two belt pulleys 406, a first rotating shaft 408 is movably connected in the inside of the bottom plate 1 through a bearing, a bevel gear 409 is arranged at the bottom end of the first rotating shaft 408 and one end of one of the threaded rods 404, the two bevel gears 409 are meshed, the bevel gear 409 is movably connected with the bottom plate 1 through a bearing, and the first motor 410 is fixedly arranged at the top end of the bevel gear 409;

[0035] The first motor 410 is started, the first motor 410 can drive the first rotating shaft 408 to rotate, the first rotating shaft 408 can drive the threaded rods 404 to rotate under the action of the two bevel gears 409, the two threaded rods 404 can rotate simultaneously under the action of the belt pulley 406 and the belt 407, the threaded rods 404 rotate can drive the moving block 405 to move, the moving block 405 moves can drive the limiting plate 401 to move, the limiting plate 401 can drive the sealing cover 3 to move, the mixed mechanism 6 is pulled out from the inside of the reaction tank 2 by the sealing cover 3, the residual on the inner wall of the reaction tank 2 can be cleaned in the moving process of the cleaning scraper 602, the cleanness of the reaction tank 2 is guaranteed, the residual on the surface of the mixed mechanism 6 can be cleaned conveniently for the staff by the moving mechanism 4, and the influence on the reaction efficiency of the next time is avoided.

[0036] The above only describes some exemplary embodiments of the utility model through the way of illustration, without doubt, for the ordinary skilled person in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the utility model. Therefore, the above drawings and description are illustrative in nature and should not be understood as limiting the scope of protection claimed by the utility model.

Claims

1. A reaction vessel for producing monochloroacetone, comprising a bottom plate (1), characterized in that: The bottom plate (1) is supported by a bracket on the top of the reaction vessel (2). A sealing cover (3) is provided on one side of the reaction vessel (2). A sealing ring is provided on one side of the sealing cover (3). A moving mechanism (4) is provided on the top of the bottom plate (1) to move the sealing cover (3). The moving mechanism (4) includes a limiting plate (401) located outside the reaction vessel (2). A connecting plate (402) is fixedly provided on both sides of the sealing cover (3). One end of the connecting plate (402) is fixedly connected to the limiting plate (401). A support plate (403) is fixedly provided on both sides of the limiting plate (401). Two threaded rods (404) are movably connected inside the bottom plate (1) through bearings. A moving block (405) is threadedly connected to the outside of the threaded rod (404). The top of the moving block (405) is fixedly connected to the bottom of the support plate (403).

2. The reaction vessel for producing monochloroacetone according to claim 1, characterized in that: One end of the threaded rod (404) is provided with a pulley (406), and the two pulleys (406) are fitted with the same belt (407). The base plate (1) is movably connected to the first rotating shaft (408) through the bearing. The bottom end of the first rotating shaft (408) and one end of one of the threaded rods (404) are both provided with bevel gears (409). The two bevel gears (409) mesh with each other. The bevel gears (409) are movably connected to the base plate (1) through the bearing. The top end of the bevel gears (409) is fixedly provided with a first motor (410).

3. A reaction vessel for producing monochloroacetone according to claim 1, characterized in that: The bottom plate (1) is equipped with a purification mechanism (5) at the top to recover the gas generated during the production of monochloroacetone. The purification mechanism (5) includes a connecting pipe (501) fixedly connected to one side of the reaction tank (2), a container (502) is provided on the top of the bottom plate (1), a collection bucket (503) is provided inside the container (502), the bottom end of the connecting pipe (501) extends into the collection bucket (503), a gas outlet pipe (507) is fixedly connected to one side of the collection bucket (503), one end of the gas outlet pipe (507) passes through the container (502) and extends out of one side of the container (502), one end of the gas outlet pipe (507) is fixedly connected to a hydrogen chloride recovery tank (506), one end of the collection bucket (503) is fixedly connected to a second water outlet pipe (508), one end of the second water outlet pipe (508) passes through the container (502) and extends out of one side of the container (502).

4. A reaction vessel for producing monochloroacetone according to claim 3, characterized in that: The top of the container (502) is fixedly connected to a water inlet pipe (504), and the side of the container (502) is fixedly connected to a first water outlet pipe (505).

5. A reaction vessel for producing monochloroacetone according to claim 1, characterized in that: The base plate (1) is equipped with a mixing mechanism (6) for mixing acetone and chlorine. The mixing mechanism (6) includes a second rotating shaft (601) located inside the reaction vessel (2). A cleaning scraper (602) is fixedly provided at one end of the second rotating shaft (601). Multiple stirring rods (603) are provided outside the second rotating shaft (601). One end of the second rotating shaft (601) passes through the sealing cover (3) and extends out of one side of the sealing cover (3). The second rotating shaft (601) and the sealing cover (3) are movably connected by bearings. A second motor (604) is fixedly provided at one end of the second rotating shaft (601).

6. A reaction vessel for producing monochloroacetone according to claim 1, characterized in that: An air inlet pipe (7) is fixedly connected to one side of the sealing cap (3), and a feed pipe (8) is fixedly connected to the top of the reaction vessel (2).

7. A reaction vessel for producing monochloroacetone according to claim 1, characterized in that: A collection box (9) is provided on the top of the base plate (1).

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