Chloromethane condensate recovery device

Abstract

The utility model discloses a chloromethane condensate recovery device, and relates to the technical field of chloromethane recovery, the chloromethane condensate recovery device comprises a condensation cavity, the condensation cavity is detachably arranged at the open end of a reaction kettle, a condensation assembly is arranged in the condensation cavity, and the condensation assembly comprises a conical hopper, a rotating shaft and a cooling ring, a heat insulation ring is arranged at the edge of the bottom of the condensation cavity, a conical hopper is arranged at the top of the heat insulation ring, a rotating cylinder is rotationally connected to the top of the condensation cavity, the rotating shaft penetrates through the rotating cylinder, and a plurality of fan blades are arranged on the side face of the rotating shaft in the circumferential direction and located at the upper end of the interior of the conical hopper. According to the utility model, the condensation cavity for condensing waste gas and the reaction kettle for preparing glyphosate are integrated into one cavity, so that the occupied space is reduced, the waste gas automatically moves towards the condensation cavity in the reaction kettle, and the moving speed of the waste gas between the thermal insulation ring and the condensation cavity is increased through the rotation of the fan blades, so that the condensation efficiency of the waste gas is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chloromethane recovery, in particular to a chloromethane condensate recovery device. Background Art

[0002] Glyphosate has become the most widely used herbicide in the world. Most domestic glyphosate manufacturers adopt the alkyl ester synthesis process with glycine, dimethyl phosphite and polyformaldehyde as the main raw materials. Although this process has the advantages of process stability and high yield, it produces chloromethane-rich waste gas during the production process, which requires additional treatment.

[0003] The main components of the waste gas are methyl chloride, methanol, methylal, air, etc., among which the mass fraction of methyl chloride is about 60%-80%. Independent condensation equipment needs to be installed for recovery later, and a parallel-arranged combined treatment device is used with a booster-driven waste gas for transportation and treatment.

[0004] During use, the waste gas generated during glyphosate preparation needs to be transferred to the condensation equipment for recovery. The waste gas transfer path in this process is long, which affects the waste gas treatment efficiency. In addition, the separate condensation treatment equipment and glyphosate preparation equipment require a large area, and the transportation process relies on electric pump boost drive, which will cause high operation and working costs. Utility Model Content

[0005] The purpose of the utility model is to provide a chloromethane condensate recovery device to solve the technical problem of low chloromethane recovery efficiency in the prior art.

[0006] The technical problem to be solved by the present invention can be achieved through the following technical solutions:

[0007] A chloromethane condensate recovery device includes a reactor for preparing glyphosate, the reactor having an open top, and further comprising:

[0008] The condensation chamber is detachably arranged at the open end of the reactor, and a condensation component is arranged inside the condensation chamber, and the condensation component includes a conical bucket, a rotating shaft and a cooling ring. An insulating ring is arranged at the bottom edge of the condensation chamber, and a conical bucket is arranged on the top of the insulating ring. The top of the conical bucket is open, and a plurality of air holes are provided on the conical bucket. The conical bucket is provided with a plurality of heat-conducting rods for heating it, and the cooling ring is elastically fitted on the inner wall of the condensation chamber. A rotating drum is rotatably connected to the top of the condensation chamber, and the rotating shaft passes through the rotating drum and is rotatably connected to the rotating drum. A plurality of fan blades are circumferentially arranged on the side of the rotating shaft, and the fan blades are located at the upper end of the conical bucket. A linkage structure is provided between the rotating drum and the rotating shaft, and a touch rod is provided on the side of the rotating shaft, and the touch rod cooperates with the cooling ring.

[0009] As a further solution of the present invention: the linkage structure includes a driving gear, a motor is fixedly connected to the top of the condensing chamber through a fixing frame, the output end of the motor is connected to the top of the rotating shaft, a driving gear is provided on the outside of the rotating shaft, and the top of the condensing chamber is rotatably connected to a driven gear through a mounting frame. The driven gear, the top of the rotating shaft passes through the top of the condensing chamber, and a connecting disk is provided on the outer ring surface, and a gear ring is provided at the top edge of the connecting disk, and the driven gear is respectively engaged with the gear ring and the driving gear.

[0010] As a further solution of the present invention: a plurality of springs are evenly distributed between the outer side wall of the cooling ring and the condensation chamber.

[0011] As a further solution of the present invention: a plurality of insertion rods are circumferentially arranged on the outer wall of the cooling ring, slots matching the insertion rods are opened on the inner wall of the condensation chamber, and one end of the insertion rod away from the cooling ring is plugged into the corresponding slot.

[0012] As a further solution of the present invention: a delivery pipe for cooling water is provided in an annular shape on the side wall of the cooling ring, and the inner ring surface of the cooling ring is wavy.

[0013] As a further solution of the present invention: an elastic member is provided on the inner side wall of the cooling ring, and a touch ball horizontally aligned with the touch rod is provided on one end of the elastic member away from the condensation chamber, and the touch rod cooperates with the touch ball.

[0014] As a further solution of the present invention: a water outlet is provided on the top of the insulation ring, and a recovery pipe is provided on the insulation ring and the condensation chamber, one end of the recovery pipe is connected to the water outlet, and the other end extends to the outside of the condensation chamber.

[0015] Beneficial effects of the utility model:

[0016] 1. The utility model integrates the condensing chamber used for condensation treatment of exhaust gas and the reactor for preparing glyphosate into one cavity, thereby reducing the space occupied. The exhaust gas automatically moves to the condensing chamber in the reactor. The rotation of the fan blades increases the movement speed of the exhaust gas between the insulation ring and the condensing chamber, thereby improving the exhaust gas condensation efficiency. No electric pump booster drive is required, which reduces operation and working costs, reduces the flow process of the exhaust gas, and thus improves the exhaust gas treatment efficiency.

[0017] 2. The utility model utilizes the cooperation between the driving gear, the driven gear and the gear ring to reduce the rotation speed of the rotating drum. A touch rod is provided on the rotating drum. When the touch rod rotates, it collides with the touch ball and can pass over the touch ball. The touch ball generates vibrations that are transmitted to the cooling ring. The vibrations shake off the water droplets on the inner wall of the cooling ring to keep the inner surface of the cooling ring clean, reduce heat transfer resistance, and improve heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the driving gear and the gear ring used in conjunction with each other in the present utility model;

[0021] Figure 3 This is a top view of the overall structure of the utility model;

[0022] Figure 4 For the utility model Figure 3 Cross-sectional view in the AA direction;

[0023] Figure 5 For the utility model Figure 3 Cross-sectional view in the BB direction.

[0024] In the figure: 1. Reactor; 2. Condensation chamber; 3. Insulation ring; 31. Conical bucket; 32. Air vent; 4. Rotating shaft; 41. Fan blade; 42. Motor; 5. Driving gear; 51. Driven gear; 52. Gear ring; 53. Connecting plate; 54. Rotating drum; 55. Touch rod; 56. Elastic part; 57. Touch ball; 6. Cooling ring; 61. Spring; 62. Slot; 63. Insert rod; 7. Water outlet; 71. Recovery pipe. DETAILED DESCRIPTION

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

[0026] like Figure 1-Figure 5As shown, a chloromethane condensate recovery device includes a reactor 2 for preparing glyphosate, the top of the reactor 2 is open, and also includes a condensation chamber 1 for collecting waste gas, the condensation chamber 1 is detachably arranged at the open end of the reactor 2 by a buckle or bolt, and a sealing gasket is provided at the connection between the condensation chamber 1 and the reactor 2, so that the condensation chamber 1 and the reactor 2 form a sealed chamber, a condensation component is provided inside the condensation chamber 1 for condensing the waste gas into water droplets, the condensation component includes a conical bucket 31, a rotating shaft 4 and a cooling ring 6, an insulation ring 3 made of insulation material is fixedly provided at the bottom edge of the condensation chamber 1, a conical bucket 31 is provided on the top of the insulation ring 3, the top of the conical bucket 31 is open, and a plurality of air holes 32 are provided on the conical bucket 31 to facilitate the passage of part of the waste gas from the air holes 32, and a plurality of air holes 32 are provided on the conical bucket 31. The heat conducting rod that heats up the temperature of the conical bucket 31 makes the temperature of the conical bucket 31 the same as the internal temperature of the reactor 2, avoiding a large temperature difference between the conical bucket 31 and the exhaust gas. When a large number of water droplets are condensed and flow back into the reactor 2, the conical bucket 31, the insulation ring 3 and the inner wall of the condensation chamber 1 cooperate to form a receiving groove for condensed water. The cooling ring 6 is elastically arranged on the inner wall of the condensation chamber 1. The exhaust gas condenses after contacting the cooling ring 6. The top of the condensation chamber 1 is rotatably connected with a rotating drum 54. The rotating shaft 4 passes through the rotating drum 54 and is rotatably connected to the rotating drum 54. A number of fan blades 41 are circumferentially arranged on the side of the rotating shaft 4. The fan blades 41 are located at the upper end of the inside of the conical bucket 31. A linkage structure is provided between the rotating drum 54 and the rotating shaft 4. The rotation of the fan blades 41 is used to drive the circulation of air. A touch rod 55 is provided on the side of the rotating shaft 4. The touch rod 55 cooperates with the cooling ring 6 to touch.

[0027] In some specific embodiments, such as Figure 2 or Figure 5As shown, in order to facilitate the fan blade 41 to drive the touch rod 55 to rotate when working, the linkage structure includes a driving gear 5, a motor 42 is fixedly connected to the top of the condensing chamber 1 through a fixing frame, and the output end of the motor 42 is fixedly connected to the top of the rotating shaft 4. When the motor 42 is started, it can drive the rotating shaft 4 to rotate. A driving gear 5 is provided on the outside of the rotating shaft 4, and the top of the condensing chamber 1 is rotatably connected to the driven gear 51 through the mounting frame. The driven gear 51 and the top of the rotating shaft 4 pass through the top of the condensing chamber 1, and a connecting plate 53 is fixedly provided on the outer ring surface. A gear ring 52 is fixedly provided at the top edge of the connecting plate 53. The driven gear 51 is respectively connected to the gear ring 52 and the driving gear 5 When the shaft 4 rotates, the driving gear 5 rotates synchronously, and the driven gear 51 meshing with it rotates in the opposite direction, thereby driving the gear ring 52 and the rotating drum 54 to rotate. The driving gear 5, the driven gear 51 and the gear ring 52 cooperate with each other to reduce the rotation speed of the rotating drum 54. A touch rod 55 is provided on the rotating drum 54. When the touch rod 55 rotates, it collides with the touch ball 57 and can pass over the touch ball 57. The touch ball 57 generates vibrations that are transmitted to the cooling ring 6, which generates vibrations to shake off water droplets on the inner wall of the cooling ring 6 to keep the inner surface of the cooling ring 6 clean, reduce heat transfer resistance, and improve heat exchange efficiency.

[0028] In some specific embodiments, such as Figure 4 As shown, in order to increase the vibration amplitude of the cooling ring 6, a number of springs 61 are evenly distributed between the outer wall of the cooling ring 6 and the condensation chamber 1. One end of the spring 61 is connected to the inner wall of the condensation chamber 1, and the other end is connected to the outer wall of the cooling ring 6.

[0029] In some specific embodiments, in order to facilitate the support of the cooling ring 6, a number of rods 63 are fixedly provided on the circumferential outer wall of the cooling ring 6, and a slot 62 that matches the rod 63 is opened on the inner wall of the condensation chamber 1. The end of the rod 63 away from the cooling ring 6 is plugged into the corresponding slot 62. When the cooling ring 6 vibrates, the rod 63 and the slot 62 slide relative to each other to avoid insufficient support force of the spring 61, which causes the cooling ring 6 to tilt.

[0030] In some specific embodiments, in order to facilitate increasing the exhaust gas condensation rate, a delivery pipe for cooling water is provided in a ring shape on the side wall of the cooling ring 6. The water inlet pipe and the water outlet pipe of the delivery pipe are respectively connected to the water outlet end and the water inlet end of the water circulation device, and cooling water is continuously delivered to the delivery pipe to keep the cooling ring 6 at a low temperature at all times. The cooling ring 6 is made of a metal material with good thermal conductivity, and the inner ring surface of the cooling ring 6 is wavy, which is used to increase the contact area with water vapor and increase the condensation rate.

[0031] In some specific embodiments, in order to facilitate the contact rod 55 to contact the contact ball 57 during rotation, an elastic member 56 is provided on the inner side wall of the cooling ring 6. A contact ball 57 is provided on the end of the elastic member 56 away from the condensing chamber 1 and is horizontally aligned with the contact rod 55. Each time the rotating drum 54 rotates once, the contact rod 55 will collide with the contact ball 57, thereby causing the cooling ring 6 to vibrate.

[0032] In some specific embodiments, such as Figure 4 As shown, in order to facilitate the unified collection of condensed water, a water outlet 7 is provided on the top of the insulation ring 3, and a recovery pipe 71 is provided on the insulation ring 3 and the condensation chamber 1. One end of the recovery pipe 71 is connected to the water outlet 7, and the other end extends to the outside of the condensation chamber 1, which is used to guide the condensed water to the outside of the equipment, so that the solution can be washed with water to remove soluble impurities after collection, and then washed with alkali to remove acidic impurities, and then dried to remove residual water, and finally high-purity methyl chloride is obtained.

[0033] To facilitate understanding of the embodiments of this solution by those skilled in the art, the working principle of this solution is briefly described in conjunction with specific application scenarios:

[0034] During the preparation of glyphosate, the exhaust gas rises. At this time, the motor 42 is started to drive the fan blade 41 to rotate, which guides the exhaust gas to move upward and enter between the condensation chamber 1 and the insulation ring 3, so that the exhaust gas contacts the cooling ring 6 and condenses into water droplets and slides into the storage groove formed by the conical bucket 31, the insulation ring 3 and the inner wall of the condensation chamber 1, and then flows out of the device from the water outlet 7 and the recovery pipe 71. The cooling ring 6 is wavy, which increases the contact area with the exhaust gas and improves the condensation speed of the exhaust gas. The cooling water in the delivery pipe keeps the water in the cooling ring 6 at a low temperature at all times, so that the exhaust gas is cooled faster on the cooling ring 6, thereby improving the treatment effect of the device on water vapor. While the shaft 4 rotates, The driving gear 5 fixed on the outside of the rotating shaft 4 rotates accordingly, and the driven gear 51 meshing with the driving gear 5 rotates in the opposite direction. The rotation of the driven gear 51 can drive the gear ring 52 and the rotating drum 54 to rotate. The driving gear 5, the driven gear 51 and the gear ring 52 cooperate with each other to reduce the rotation speed of the rotating drum 54. A touch rod 55 is provided on the rotating drum 54. When the touch rod 55 rotates, it collides with the touch ball 57 and can pass over the touch ball 57. The touch ball 57 generates vibrations that are transmitted to the cooling ring 6. The vibrations are generated to shake off the water droplets on the inner wall of the cooling ring 6 to keep the inner surface of the cooling ring 6 clean, reduce the heat transfer resistance, and improve the heat exchange efficiency.

[0035] The above describes several embodiments of the present invention in detail, but the present invention is not limited to these embodiments and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A chloromethane condensate recovery device, comprising a reactor (2) for preparing glyphosate, wherein the reactor (2) has an open top and is characterized in that: Also includes: A condensation chamber (1) is detachably arranged at the open end of the reaction kettle (2); a condensation assembly is arranged inside the condensation chamber (1); the condensation assembly comprises a conical bucket (31), a rotating shaft (4) and a cooling ring (6); a temperature-isolating ring (3) is arranged at the bottom edge of the condensation chamber (1); a conical bucket (31) is arranged on the top of the temperature-isolating ring (3); a plurality of air holes (32) are opened on the conical bucket (31); a plurality of heat-conducting rods for heating the conical bucket (31) are arranged on the conical bucket (31); and the cooling ring (6) is provided with a plurality of heat-conducting rods for heating the conical bucket. ) is elastically fitted on the inner wall of the condensing chamber (1), the top of the condensing chamber (1) is rotatably connected to a rotating drum (54), the rotating shaft (4) passes through the rotating drum (54) and is rotatably connected to the rotating drum (54), a plurality of blades (41) are circumferentially arranged on the side of the rotating shaft (4), the blades (41) are located at the upper end of the inner part of the conical bucket (31), a linkage structure is provided between the rotating drum (54) and the rotating shaft (4), a touch rod (55) is provided on the side of the rotating shaft (4), and the touch rod (55) cooperates with the cooling ring (6).

2. A chloromethane condensate recovery device according to claim 1, characterized in that: The linkage structure comprises a driving gear (5), a motor (42) is fixedly connected to the top of the condensing chamber (1) through a fixing frame, an output end of the motor (42) is connected to the top of the rotating shaft (4), a driving gear (5) is arranged on the outside of the rotating shaft (4), and the top of the condensing chamber (1) is rotatably connected to a driven gear (51) through a mounting frame, the driven gear (51), the top of the rotating shaft (4) passes through the top of the condensing chamber (1), and a connecting disk (53) is arranged on the outer ring surface, a gear ring (52) is arranged at the top edge of the connecting disk (53), and the driven gear (51) is respectively engaged with the gear ring (52) and the driving gear (5).

3. A chloromethane condensate recovery device according to claim 1, characterized in that: A plurality of springs (61) are evenly distributed between the outer wall of the cooling ring (6) and the condensation chamber (1).

4. A chloromethane condensate recovery device according to claim 1, characterized in that: A plurality of insertion rods (63) are circumferentially arranged on the outer wall of the cooling ring (6), and a slot (62) matching the insertion rod (63) is opened on the inner wall of the condensation chamber (1), and the end of the insertion rod (63) away from the cooling ring (6) is plugged into the corresponding slot (62).

5. A chloromethane condensate recovery device according to claim 1, characterized in that: A delivery pipe for passing cooling water is provided in an annular shape on the side wall of the cooling ring (6), and the inner annular surface of the cooling ring (6) is wavy.

6. A chloromethane condensate recovery device according to claim 1, characterized in that: An elastic member (56) is provided on the inner wall of the cooling ring (6), and a touch ball (57) horizontally aligned with the touch rod (55) is provided at one end of the elastic member (56) away from the condensation chamber (1), and the touch rod (55) cooperates with the touch ball (57).

7. A chloromethane condensate recovery device according to claim 1, characterized in that: A water outlet (7) is provided at the top of the insulation ring (3), and a recovery pipe (71) is provided on the insulation ring (3) and the condensation chamber (1). One end of the recovery pipe (71) is connected to the water outlet (7), and the other end extends to the outside of the condensation chamber (1).

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