Cyclohexane carboxylic acid reaction kettle

Abstract

The utility model provides a cyclohexane carboxylic acid reaction kettle which comprises a kettle body, a plurality of microporous filter rods, a cleaning assembly and a lifting assembly, and the kettle body is provided with a feed port, a discharge port, a nitrogen inlet and a hydrogen inlet; the plurality of microporous filter rods are arranged in the kettle body, and the lower end of each microporous filter rod is communicated with the discharge port; the cleaning assembly comprises a plurality of scraping sleeves and a connecting frame, the scraping sleeves are in one-to-one correspondence with the microporous filter rods, and the scraping sleeves are arranged on the microporous filter rods in a sleeving manner, are in sliding fit with the microporous filter rods and are used for scraping and sweeping the microporous filter rods; the connecting frame is respectively connected with the plurality of scraping sleeves; the lifting assembly is connected with the kettle body, and the power output end is connected with the connecting frame and used for driving the cleaning assembly to reciprocate up and down. According to the cyclohexane carboxylic acid reaction kettle provided by the utility model, the possibility that the filtering holes of the microporous filtering rod are blocked can be effectively reduced, and the discharging speed is ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to biochemical reaction equipment technical field, concretely relates to a cyclohexane carboxylic acid reaction kettle. BACKGROUND

[0002] Cyclohexane carboxylic acid is an important organic chemical raw material, usually adopts benzoic acid catalytic hydrogenation synthesis, it is good photocuring agent itself, still can be used in the synthesis of the new drug praziquantel for treating blood flukes and the intermediate of synthetic drug, has extensive application value in new material and drug research and development. The melting point of benzoic acid is 122.13 DEG C, and the liquid benzoic acid under the action of Pd / C catalyst is reduced to prepare cyclohexane carboxylic acid in the reaction kettle. Pd / C catalyst is black solid, and it is a kind of valuable goods, and the existing reaction kettle can cause great loss of catalyst during production, which can cause huge economic loss.

[0003] The existing reaction kettle makes the solution flow through the filter stick to filter the catalyst therein after the reaction is completed, and in this process, the filter holes on the filter stick are easy to be blocked, thereby affecting the discharge speed. UTILITARIAN CONTENT

[0004] The utility model provides a cyclohexane carboxylic acid reaction kettle, aims at solving the technical problem in the above background art.

[0005] To achieve the above object, the utility model adopts the technical scheme of providing a cyclohexane carboxylic acid reaction kettle, comprising:

[0006] The kettle body is provided with a feed inlet, a discharge outlet, a nitrogen inlet and a hydrogen inlet;

[0007] A plurality of microporous filter sticks are arranged inside the kettle body, and the lower end of each microporous filter stick is in communication with the discharge outlet;

[0008] The cleaning assembly includes a plurality of scraping sleeves and a connecting frame, the scraping sleeves correspond one-to-one to the microporous filter sticks, the scraping sleeves are sleeved on the microporous filter sticks and are in sliding fit with the microporous filter sticks, and are used to scrape the microporous filter sticks; the connecting frame is connected with the plurality of scraping sleeves; and

[0009] The lifting assembly is connected with the kettle body, the power output end is connected with the connecting frame, and the lifting assembly is used to drive the cleaning assembly to reciprocate up and down.

[0010] In a possible implementation manner of the cyclohexane carboxylic acid reaction kettle provided by the utility model, the scraping sleeve is internally provided with a wear-resistant rubber ring, and the inner side of the wear-resistant rubber ring is attached to the microporous filter stick.

[0011] In a possible implementation manner of the cyclohexane carboxylic acid reaction kettle, the connecting frame comprises a ring body and a plurality of connecting rods, the ring body is arranged in the kettle body, the connecting rods are in one-to-one correspondence with the scraping sleeves, one end of each connecting rod is connected with the ring body, and the other end of each connecting rod is connected with the scraping sleeve.

[0012] In a possible implementation manner of the cyclohexane carboxylic acid reaction kettle, the stirring plate is connected with the ring body, and the stirring plate is a plate body provided with a plurality of holes.

[0013] In a possible implementation manner of the cyclohexane carboxylic acid reaction kettle, the lifting assembly comprises a lifting mechanism and a plurality of guide rods, the plurality of guide rods are vertically and spacedly arranged and connected with the kettle body, the connecting frame is in sliding fit with the guide rods, the lifting mechanism is connected with the kettle body, and a power output end is connected with the connecting frame.

[0014] In a possible implementation manner of the cyclohexane carboxylic acid reaction kettle, the temperature control assembly is arranged in the kettle body and used for controlling the reaction temperature.

[0015] In a possible implementation manner of the cyclohexane carboxylic acid reaction kettle, the temperature control assembly comprises a temperature detector and a temperature adjusting pipe, the temperature detector is connected with the kettle body, a temperature sensing end of the temperature detector extends into the kettle body, the temperature adjusting pipe is spirally wound in the kettle body, and one side of the kettle body is provided with a liquid inlet and a liquid outlet which are in communication with the temperature adjusting pipe and used for introducing a temperature adjusting medium into the temperature adjusting pipe.

[0016] The cyclohexane carboxylic acid reaction kettle has the following beneficial effects: compared with the prior art, after reaction, the cyclohexane carboxylic acid reaction kettle provided by the utility model introduces nitrogen into the kettle body through the nitrogen inlet, pressurizes the material in the kettle body through the nitrogen pressurization mode, and the material is discharged from the discharge port after being filtered by the microporous filter rod; in this process, the lifting assembly drives the cleaning assembly to reciprocate up and down, the scraping sleeve reciprocally scrapes the surface of the microporous filter rod, the possibility of clogging of the filter holes of the microporous filter rod is effectively reduced, and the discharge speed is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The utility model provides a cyclohexane carboxylic acid reaction kettle's stereoscopic structure schematic diagram for embodiment of the utility model;

[0018] Figure 2 The utility model provides a cyclohexane carboxylic acid reaction kettle's sectional structure schematic diagram for embodiment of the utility model;

[0019] Figure 3The utility model provides a cyclohexane carboxylic acid reaction kettle middle micropore filter stick and clean subassembly's three-dimensional structure schematic diagram for the embodiment of the utility model provides.

[0020] Mark explanation:

[0021] 10, kettle body, 11, feed inlet, 12, discharge port, 13, nitrogen inlet, 14, hydrogen inlet,

[0022] 15, vent pipe, 16, sight glass, 20, micropore filter stick, 31, scraping sleeve,

[0023] 311, wear-resistant rubber ring, 32, ring body, 33, connecting rod,

[0024] 40, stirring plate, 51, guide rod, 71, temperature gauge,

[0025] 72, temperature adjusting pipe, 721, liquid inlet, 722, liquid outlet. Specific implementation

[0026] In order to make the technical problem, technical scheme and beneficial effect of the utility model to be solved more clear and obvious, the utility model is further described in detail below by combining with the drawings and examples. It should be understood that the specific examples described here are only used to explain the utility model, and are not used to limit the utility model.

[0027] The technical scheme in the examples of the application will be described clearly and completely below by combining with the drawings in the examples of the application. Obviously, the described examples are only a part of the examples of the application, not all examples. The description of the at least one example embodiment is actually only illustrative, and is by no means any limitation on the application and its application or use. Based on the examples in the application, all other examples obtained by those skilled in the art without creative labor are within the scope of protection of the application.

[0028] It should be noted that the terms used here are only for describing the specific embodiments, and are not intended to limit the example embodiments according to the application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and furthermore, it should be understood that when the terms "comprise" and / or "include" are used in the specification, they mean that the features, steps, operations, devices, components and / or their combinations are present.

[0029] The foregoing description, for purposes of clarity, describes the present application in terms of its components, processes and operations. Such an expressly detailed description is not intended to limit the scope of the present application. Further, it is to be understood that the drawings and detailed description provided herein are not intended to limit the present application to the precise form disclosed. Various modifications and equivalents can be suggested in light of the above teaching, and it is thus understood that within the scope of the appended claims the present application can be practiced otherwise than is specifically described herein.

[0030] In the description of the present application, it is to be understood that the specific structural or relative location relationships indicated by the orientation words such as "front, back, upper, lower, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" and the like are generally based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and in the absence of contrary description, these orientation words do not indicate and imply that the devices or elements referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the scope of protection of the present application; the orientation words "inner, outer" refer to the inner and outer relative to the contour of the components themselves.

[0031] For the convenience of description, spatial relative terms such as "over", "above", "upper surface", "upper" and the like can be used herein to describe the spatial positional relationship of one device or feature with respect to other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the devices described in the drawings. For example, if the devices in the drawings are inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "under" the other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways, and the spatial relative descriptions used herein are interpreted accordingly.

[0032] In addition, it should be noted that the use of the words "first", "second" and the like to describe various components is merely intended to distinguish the corresponding components, and the words have no special meaning unless otherwise stated, and therefore cannot be understood as a limitation on the scope of protection of the present application.

[0033] Please refer to Figures 1 to 3The cyclohexane carboxylic acid reaction kettle comprises a kettle body 10, a plurality of microporous filter rods 20, a cleaning assembly and a lifting assembly, the kettle body 10 is provided with a feeding port 11, a discharging port 12, a nitrogen inlet 13 and a hydrogen inlet 14; the plurality of microporous filter rods 20 are arranged inside the kettle body 10, and the lower end of each microporous filter rod 20 is communicated with the discharging port 12; the cleaning assembly comprises a plurality of scraping sleeves 31 and a connecting frame, the scraping sleeve 31 corresponds to the microporous filter rod 20 one by one, the scraping sleeve 31 is sleeved on the microporous filter rod 20 and is in sliding fit with the microporous filter rod 20 and is used for scraping the microporous filter rod 20; the connecting frame is connected with the plurality of scraping sleeves 31 respectively; the lifting assembly is connected with the kettle body 10, a power output end is connected with the connecting frame and is used for driving the cleaning assembly to move up and down reciprocatingly.

[0034] Specifically, the kettle body 10 is further provided with a vent pipe 15, and the vent pipe is provided with a sight glass 16.

[0035] It should be noted that the feeding port 11, the discharging port 12, the nitrogen inlet 13 and the hydrogen inlet 14 of the kettle body 10 are all provided with switch valves.

[0036] The cyclohexane carboxylic acid reaction kettle has the following beneficial effects: compared with the prior art, after reaction, the kettle body 10 is filled with nitrogen through the nitrogen inlet 13, the material in the kettle body 10 is pressurized through nitrogen pressurization, the material is filtered through the microporous filter rod 20 and then discharged from the discharging port 12; in this process, the cleaning assembly is driven to move up and down reciprocatingly by the lifting assembly, the scraping sleeve 31 reciprocatingly scrapes the surface of the microporous filter rod 20, the possibility of clogging of the filter hole of the microporous filter rod 20 is effectively reduced, and the discharging speed is ensured.

[0037] As shown in FIGS. Figure 2 and Figure 3 In one specific embodiment of the cyclohexane carboxylic acid reaction kettle provided in the embodiment of the utility model, the scraping sleeve 31 is internally provided with a wear-resistant rubber ring 311, and the inner side of the wear-resistant rubber ring 311 is attached to the microporous filter rod 20.

[0038] It should be noted that the material of the microporous filter rod 20 is 316 stainless steel; the wear-resistant rubber ring 311 is made of rubber, silicone or polyurethane and the like, has good wear resistance and can effectively reduce the wear of the microporous filter rod 20.

[0039] As shown in FIGS. Figure 2 and Figure 3As shown in the specific embodiment of the cyclohexane carboxylic acid reaction kettle provided in the embodiment of the utility model, the connecting frame comprises a ring body 32 and a plurality of connecting rods 33, the ring body 32 is arranged in the kettle body 10, the connecting rod 33 corresponds to the scraping sleeve 31 one by one, one end of the connecting rod 33 is connected with the ring body 32, and the other end is connected with the scraping sleeve 31.

[0040] Further, as shown in the specific embodiment of the cyclohexane carboxylic acid reaction kettle provided in the embodiment of the utility model, Figure 2 and Figure 3 As shown in the specific embodiment of the cyclohexane carboxylic acid reaction kettle provided in the embodiment of the utility model, a stirring plate 40 is further included, the stirring plate 40 is connected with the ring body 32, the stirring plate 40 is a plate body provided with a plurality of holes, so that the material is stirred by the stirring plate 40 in the process of moving up and down on the ring body 32.

[0041] Specifically, as shown in the specific embodiment of the cyclohexane carboxylic acid reaction kettle provided in the embodiment of the utility model, Figure 2 and Figure 3 As shown in the specific embodiment of the cyclohexane carboxylic acid reaction kettle provided in the embodiment of the utility model, the lifting assembly comprises a lifting mechanism and a plurality of guide rods 51, the plurality of guide rods 51 are vertically and spaced apart, are connected with the kettle body 10, the connecting frame is in sliding fit with the guide rods 51, the lifting mechanism is connected with the kettle body 10, and the power output end is connected with the connecting frame.

[0042] More specifically, the lifting assembly comprises two guide rods 51, and the two guide rods 51 are symmetrically arranged and connected with the kettle body 10, so that the sliding of the connecting frame is more stable.

[0043] Specifically, the lifting mechanism can be a cylinder, an electric push rod or the like device capable of outputting axial displacement.

[0044] As shown in the specific embodiment of the cyclohexane carboxylic acid reaction kettle provided in the embodiment of the utility model, Figure 2 and Figure 3 As shown in the specific embodiment of the cyclohexane carboxylic acid reaction kettle provided in the embodiment of the utility model, a temperature control assembly is further included, and the temperature control assembly is arranged in the kettle body 10 and used for controlling the reaction temperature.

[0045] Specifically, as shown in the specific embodiment of the cyclohexane carboxylic acid reaction kettle provided in the embodiment of the utility model, Figure 2 and Figure 3 Figure 2 Figure 3 As shown in the specific embodiment of the cyclohexane carboxylic acid reaction kettle provided in the embodiment of the utility model, the temperature control assembly comprises a thermometer 71 and a temperature regulating pipe 72, the thermometer 71 is connected with the kettle body 10, a temperature sensing end of the thermometer 71 extends into the kettle body 10, the temperature regulating pipe 72 is spirally wound in the kettle body 10, one side of the kettle body 10 is provided with a liquid inlet 721 and a liquid outlet 722 which are in communication with the temperature regulating pipe 72, and the temperature regulating pipe 72 is used for introducing a temperature regulating medium into the temperature regulating pipe 72.

[0046] It should be noted that the optimal temperature for producing cyclohexane carboxylic acid is 160-170 DEG C, the temperature of the reaction kettle is monitored in real time by the temperature gauge 71, and the temperature of the kettle body 10 is adjusted by passing low-temperature medium or high-temperature medium into the temperature adjusting pipe 72, so that the temperature is kept between 160-170 DEG C, thereby effectively ensuring the utilization rate of the catalyst and the yield of cyclohexane carboxylic acid.

[0047] Specifically, the low-temperature medium is usually cooling water, and the high-temperature medium is usually high-temperature steam, oil, etc.

[0048] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A cyclohexane carboxylic acid reactor characterized by, include: The kettle body is provided with a feed port, a discharge port, a nitrogen inlet and a hydrogen inlet; A plurality of microporous filter rods are arranged inside the kettle body, and the lower end of each of the microporous filter rods is connected to the discharge port; A cleaning assembly comprising a plurality of scraper sleeves and a connecting frame, wherein the scraper sleeves correspond one to one with the microporous filter rods, the scraper sleeves are sleeved on the microporous filter rods, and slideably cooperate with the microporous filter rods to scrape the microporous filter rods; the connecting frame is respectively connected to the plurality of scraper sleeves; and The lifting component is connected to the kettle body, and the power output end is connected to the connecting frame, and is used to drive the cleaning component to move up and down.

2. The cyclohexane carboxylic acid reactor of claim 1, wherein, A wear-resistant rubber ring is provided inside the scraper sleeve, and the inner side of the wear-resistant rubber ring is fitted with the microporous filter rod.

3. The cyclohexanecarboxylic acid reactor according to claim 1, wherein The connecting frame includes a ring body and a plurality of connecting rods. The ring body is arranged in the kettle body. The connecting rods correspond to the scraper sleeves one by one. One end of the connecting rod is connected to the ring body, and the other end is connected to the scraper sleeve.

4. The cyclohexanecarboxylic acid reactor of claim 3, wherein, It also includes a stirring plate, which is connected to the ring body and is a plate body with multiple holes.

5. The cyclohexanecarboxylic acid reactor of claim 1 wherein, The lifting assembly includes a lifting mechanism and a plurality of guide rods, the plurality of guide rods are vertically spaced and connected to the kettle body, the connecting frame is slidably matched with the guide rods, the lifting mechanism is connected to the kettle body, and the power output end is connected to the connecting frame.

6. The cyclohexanecarboxylic acid reactor of claim 1, wherein, It also includes a temperature control component, which is arranged in the kettle body and is used to control the reaction temperature.

7. The cyclohexanecarboxylic acid reactor of claim 6 wherein, The temperature control assembly includes a thermometer and a temperature regulating tube. The thermometer is connected to the kettle body, the temperature sensing end of the thermometer extends into the kettle body, the temperature regulating tube is spirally coiled inside the kettle body, and a liquid inlet and a liquid outlet connected to the temperature regulating tube are provided on one side of the kettle body for introducing a temperature regulating medium into the temperature regulating tube.

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