A graphite condenser for producing thiabendazole

Abstract

This utility model discloses a graphite condenser for the production of methyl thiophanate, comprising a condenser shell, a material outlet at the top of the condenser shell, a material inlet on one side of the bottom of the condenser shell, and a graphite tube bundle inside the condenser shell. A polymerizer and a distributor are respectively located at the top and bottom of the graphite tube bundle. The material outlet is connected to the polymerizer, and the material inlet is connected to the distributor. A filter is provided between the material inlet and the distributor. In this utility model, a filter with a built-in cuboid filter cover is added between the material inlet and the distributor. The filter cover effectively intercepts impurities in the material through the filter mesh on both sides, preventing clogging of the graphite tube bundle. The filter cover is rotatably connected to the distributor through a connecting pipe. In conjunction with a first rotary motor and a bevel gear and spur gear transmission mechanism, the filter cover can be rotated, using centrifugal force to throw away impurities attached to the filter holes, achieving active cleaning.

Description

Technical Field

[0001] This utility model relates to the field of methyl thiophanate production technology, and in particular to a graphite condenser for methyl thiophanate production. Background Technology

[0002] Thiophanate-methyl, as a broad-spectrum fungicide, is widely used in agricultural production. Its production process requires multiple chemical reactions, among which the condensation and cooling of the reacted materials is a key process step. The high-temperature reacted materials need to be cooled to a specific temperature to meet the requirements of subsequent separation and purification processes. Furthermore, the condensation process must avoid the reaction between the materials and the condenser material, while ensuring that the purity of the materials is not contaminated.

[0003] The condensation equipment commonly used in the production of thiophanate-methyl has the following shortcomings in the existing technology:

[0004] 1. The reactants of methyl thiophanate often contain impurities such as catalyst residues and unreacted raw material particles. If they enter the condenser directly, they are likely to adhere to the inner wall of the graphite tube bundle or block the tube bundle channels. This not only further reduces the heat exchange efficiency, but also requires frequent shutdowns for disassembly and cleaning, which seriously affects the continuity of production and increases operation and maintenance costs.

[0005] 2. Although some existing condensers have added filter components, most of the filter components are fixed structures, and the filter holes are easily clogged by impurities. Moreover, they lack an active cleaning mechanism and require manual replacement or cleaning of the filter components periodically, which is cumbersome. At the same time, the connection between the filter components and the condenser body is complicated, making disassembly and maintenance difficult, which further restricts the long-term stable operation of the equipment. Utility Model Content

[0006] To address the problems mentioned in the background section, this invention provides a graphite condenser for the production of thiophanate-methyl.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A graphite condenser for the production of thiophanate-methyl includes a condenser shell, a material outlet at the top of the condenser shell, a material inlet on one side of the bottom of the condenser shell, a graphite tube bundle inside the condenser shell, a polymerizer and a distributor at the top and bottom of the graphite tube bundle respectively, the material outlet being connected to the polymerizer, the material inlet being connected to the distributor, and a filter being provided between the material inlet and the distributor, the filter having a filter cover inside, the filter cover having a cuboid structure, and filter mesh openings on both sides of the filter cover, the top of the filter cover being rotatably connected to the bottom of the distributor via a connecting pipe.

[0009] Preferably, the condenser shell has a tube-side inlet and a tube-side outlet near the top and bottom of its side wall, respectively, and the inner wall of the condenser shell has staggered baffles.

[0010] Preferably, a first bevel gear is fixed to the outside of the connecting pipe, a first drive shaft is rotatably mounted on the filter, one end of the first drive shaft extends into the filter and is fixed with a second bevel gear, the first bevel gear meshes with the second bevel gear, and the other end of the first drive shaft extends to the outside of the filter and is connected to a first straight gear through a first one-way transmission.

[0011] Preferably, a first rotary motor is fixed to the bottom end of the distributor, and a second spur gear is fixed to the output shaft of the first rotary motor, the second spur gear meshing with the first spur gear.

[0012] Preferably, a vertically arranged second power input shaft is rotatably mounted on the filter, the bottom end of the second power input shaft extending to the outside of the filter and connected to the output shaft of the second rotary motor through a second one-way transmission.

[0013] Preferably, two parallel unblocking plates are slidably mounted on the inner wall of the top of the filter cover via a slide rail. Unblocking needles corresponding to the filter mesh holes on the filter cover are fixed on the opposite sides of the two unblocking plates. An elastic telescopic rod connects the two unblocking plates. The top of the second power input shaft extends movably into the interior of the filter cover and is fixed with an elliptical support wheel. The tension of the elastic telescopic rod keeps the edges of the two unblocking plates in contact with the elliptical support wheel.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. A filter is added between the material inlet and the distributor. The filter cover with a built-in rectangular structure can effectively intercept impurities in the material through the filter mesh on both sides, avoiding blockage of the graphite tube bundle.

[0016] 2. The filter cover is connected to the distributor via a connecting pipe. In conjunction with the first rotating motor, bevel gear and spur gear transmission mechanism, it can drive the filter cover to rotate, using centrifugal force to throw off the impurities attached to the filter holes, thus achieving active cleaning.

[0017] 3. The filter cover is equipped with a reciprocating sliding cleaning plate and cleaning needle. The elliptical support wheel is driven to rotate by the second rotary motor. With the restoring force of the elastic telescopic rod, the cleaning needle is repeatedly inserted into the filter mesh to thoroughly remove the blockage and impurities. No machine shutdown and disassembly are required, which greatly reduces the maintenance frequency and ensures continuous production. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a perspective view of the present utility model;

[0020] Figure 2 This is a front-view sectional view of the present invention;

[0021] Figure 3 This is a front-view sectional view of the filter of this utility model;

[0022] Figure 4 This is a perspective sectional view of the filter of this utility model;

[0023] Figure 5 This is a schematic diagram of the internal structure of the filter cover of this utility model;

[0024] In the diagram: 1. Condenser shell; 101. Material outlet; 102. Material inlet; 103. Tube-side inlet; 104. Tube-side outlet; 105. Baffle; 2. Graphite tube bundle; 201. Aggregator; 202. Distributor; 3. Filter; 301. Second power input shaft; 302. Second rotary motor; 304. Elliptical support wheel; 4. Filter cover; 401. Connecting pipe; 402. First bevel gear; 5. Rotary motor; 501. Second spur gear; 502. Third spur gear; 6. First drive shaft; 601. First spur gear; 602. Second bevel gear; 603. Elastic telescopic rod; 604. Slide rail; 605. Unblocking plate; 606. Unblocking needle. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] Example

[0027] Reference Figure 1-5A graphite condenser for the production of thiophanate-methyl includes a condenser shell 1, a material outlet 101 at the top of the condenser shell 1, a material inlet 102 at one side of the bottom of the condenser shell 1, a graphite tube bundle 2 inside the condenser shell 1, a polymerizer 201 and a distributor 202 at the top and bottom of the graphite tube bundle 2 respectively, the material outlet 101 is connected to the polymerizer 201, the material inlet 102 is connected to the distributor 202, and a filter 3 is provided between the material inlet 102 and the distributor 202, the filter 3 is provided with a filter cover 4 inside the filter 3, the filter cover 4 is a cuboid structure, and filter mesh holes are opened on both sides of the filter cover 4, the top of the filter cover 4 is rotatably connected to the bottom of the distributor 202 through a connecting pipe 401, a tube inlet 103 and a tube outlet 104 are respectively provided on the side wall of the condenser shell 1 near the top and bottom, and baffles 105 are staggered on the inner wall of the condenser shell 1;

[0028] The refrigerant enters through the tube inlet 103 and flows out through the tube outlet 104. The baffle 105 is used to extend the refrigerant's path and improve the heat exchange effect. The material is introduced through the material inlet 102, filtered by the filter 3, and then flows evenly into the graphite tube bundle 2 through the distributor 202 to exchange heat with the refrigerant, achieving the purpose of condensation and cooling. Finally, it is collected by the polymerizer 201 and flows out through the material outlet 101.

[0029] The connecting pipe 401 is externally fixed with a first bevel gear 402. A first drive shaft 6 is rotatably mounted on the filter 3. One end of the first drive shaft 6 extends into the filter 3 and is fixed with a second bevel gear 602. The first bevel gear 402 meshes with the second bevel gear 602. The other end of the first drive shaft 6 extends into the outside of the filter 3 and is connected to a first spur gear 601 through a first one-way transmission. The bottom end of the distributor 202 is fixed with a first rotary motor 5. The output shaft of the first rotary motor 5 is fixed with a second spur gear 501. The second spur gear 501 meshes with the first spur gear 601.

[0030] When the first rotary motor 5 is turned on, it drives the second spur gear 501 to rotate clockwise. This, in turn, meshes with the first spur gear 601, driving the first drive shaft 6 and the second bevel gear 602 to rotate. The meshing of the second bevel gear 602 with the first bevel gear 402 then drives the entire filter cover 4 to rotate. Centrifugal force is used to dislodge the filter material clogging the filter cover 4, achieving active cleaning. Regular cleaning improves filtration efficiency. Furthermore, the filter 3 is also rotatably mounted with a vertically arranged second power input shaft 301. The bottom end of shaft 301 extends to the outside of filter 3 and is connected to the output shaft of second rotary motor 302 through second one-way drive. Due to the existence of second one-way drive, when second power input shaft 301 rotates with filter cover 4 as a whole, power will not be transmitted to the output shaft of second rotary motor 302. When the output shaft of second rotary motor 302 rotates in another direction, power can be transmitted to second power input shaft 301. The first one-way drive and the second one-way drive adopt the ratchet transmission principle in the prior art. Power can only be transmitted when rotating in one direction.

[0031] Two parallel unblocking plates 605 are slidably installed on the inner wall of the top of the filter cover 4 via a slide rail 601. Unblocking needles 606 corresponding to the filter mesh holes on the filter cover 4 are fixed on the side of the two unblocking plates 605 that are far apart from each other. An elastic telescopic rod 603 is connected between the two unblocking plates 605. The top of the second power input shaft 301 extends into the interior of the filter cover 4 and is fixed with an elliptical support wheel 304. The tension of the elastic telescopic rod 603 keeps the edges of the two unblocking plates 605 in contact with the elliptical support wheel 304.

[0032] When the second rotary motor 302 drives the second power input shaft 301 to rotate, which in turn drives the elliptical support wheel 304 to rotate, the elastic telescopic rod 603, in conjunction with its reset pull, can drive the two unblocking plates 605 to move back and forth, thereby unblocking the filter holes through the unblocking needle 606, which can further improve the efficiency of cleaning the filter mesh.

[0033] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "join," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A graphite condenser for the production of thiophanate-methyl, comprising a condenser shell (1), characterized in that: The top of the condenser shell (1) is provided with a material outlet (101), and the bottom side of the condenser shell (1) is provided with a material inlet (102). The interior of the condenser shell (1) is provided with a graphite tube bundle (2). The top and bottom of the graphite tube bundle (2) are respectively provided with a polymerizer (201) and a distributor (202). The material outlet (101) is connected to the polymerizer (201), and the material inlet (102) is connected to the distributor (202). A filter (3) is provided between the material inlet (102) and the distributor (202). The filter (3) is provided with a filter cover (4). The filter cover (4) is a cuboid structure, and filter mesh holes are opened on both sides of the filter cover (4). The top of the filter cover (4) is connected to the bottom of the distributor (202) through a connecting pipe (401).

2. A graphite condenser for the production of methyl thiophanate according to claim 1, characterized in that: The condenser shell (1) has a tube inlet (103) and a tube outlet (104) near the top and bottom of the side wall, respectively, and baffles (105) are staggered on the inner wall of the condenser shell (1).

3. A graphite condenser for the production of methyl thiophanate according to claim 1, characterized in that: A first bevel gear (402) is fixed to the outside of the connecting pipe (401). A first drive shaft (6) is rotatably mounted on the filter (3). One end of the first drive shaft (6) extends into the filter (3) and is fixed with a second bevel gear (602). The first bevel gear (402) meshes with the second bevel gear (602). The other end of the first drive shaft (6) extends to the outside of the filter (3) and is connected to a first straight gear (601) through a first one-way transmission.

4. A graphite condenser for the production of methyl thiophanate according to claim 3, characterized in that: The bottom end of the distributor (202) is fixed with a first rotary motor (5), and the output shaft of the first rotary motor (5) is fixed with a second spur gear (501), which meshes with the first spur gear (601).

5. A graphite condenser for the production of methyl thiophanate according to claim 1, characterized in that: The filter (3) is also rotatably mounted with a vertically arranged second power input shaft (301), the bottom end of which extends to the outside of the filter (3) and is connected to the output shaft of the second rotary motor (302) through a second one-way transmission.

6. A graphite condenser for the production of methyl thiophanate according to claim 5, characterized in that: Two parallel cleaning plates (605) are slidably mounted on the inner wall of the top of the filter cover (4) via a slide rail (604). On the side of the two cleaning plates (605) that are far apart from each other, there are cleaning needles (606) that correspond one-to-one with the filter mesh holes on the filter cover (4). An elastic telescopic rod (603) is connected between the two cleaning plates (605). The top of the second power input shaft (301) extends into the interior of the filter cover (4) and is fixed with an elliptical support wheel (304). The tension of the elastic telescopic rod (603) keeps the edges of the two cleaning plates (605) in contact with the elliptical support wheel (304).

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