2-chloronicotinic acid mother liquor material separation and purification device

Abstract

The utility model relates to the technical field of chemical equipment, in particular to a 2-chloronicotinic acid mother liquor material separation and purification device which comprises a bottom plate, a support and a purification assembly, and the purification assembly comprises a mixing piece, a first electromagnetic valve, a conveying hose, a connecting plug, a threaded cap, a fixing frame, a filtering box, a filtering piece, a buckling cover, two fixing pieces, a connecting piece, a condensation pipe and a separation mechanism. When the filtering piece needs to be cleaned and replaced, a threaded cap is twisted to drive a connecting plug to loosen a connecting piece on a buckling cover, so that a conveying hose is taken down from the buckling cover, then fixing pieces on the two sides of the buckling cover are operated to loosen the filtering box, the buckling cover is taken down from the filtering box, and then the filtering piece is replaced and cleaned. Therefore, the problem that the subsequent filtering effect is affected due to the fact that the filtering box of an existing 2-chloronicotinic acid separation and purification device is of an integrated structure, a filtering net is blocked after the device is used for a period of time, and the filtering box is inconvenient to open to replace and clean the filtering net is solved.

Description

A 2-chloronicotinic acid mother liquor separation and purification device Technical Field

[0001] This utility model relates to the field of chemical equipment technology, and in particular to a 2-chloronicotinic acid mother liquor separation and purification device. Background Technology

[0002] 2-Chloronicotinic acid is an important agricultural and pharmaceutical intermediate. After the 2-chloronicotinic acid refining mother liquor is produced, it still contains a large amount of 2-chloronicotinic acid, which needs to be recycled. Existing filtration and purification equipment can only remove large particulate impurities, and it is difficult to remove other dissolved chemical substances, resulting in poor purification effect.

[0003] The prior art (CN212199073U) discloses a 2-chloronicotinic acid separation and purification device, including a base plate, four sets of support legs, a dissolving tank, a connecting pipe, a first valve, a filter box, a condenser pipe, a second valve, a separation box, three sets of support columns, a first motor, and a centrifuge box. The bottom ends of the four sets of support legs are respectively connected to the top end of the base plate. The dissolving tank has a cavity inside, with an upper opening at the top and a lower opening at the bottom, both of which communicate with the cavity. The input end of the connecting pipe is connected to the lower opening of the dissolving tank, and the first valve is connected to the connecting pipe. The filter box has a cavity inside, with an inlet at the top and an outlet at the bottom, both of which communicate with the cavity. The inlet of the filter box is connected to the output end of the connecting pipe, and the outlet of the filter box is connected to the input end of the condenser pipe, thereby increasing the purification effect.

[0004] However, with the above method, since the filter box is a single unit, the filter screen becomes clogged after a period of use, making it inconvenient to open the filter box to replace and clean the filter screen, which in turn affects the subsequent filtration effect. Summary of the Invention

[0005] The purpose of this invention is to provide a 2-chloronicotinic acid mother liquor separation and purification device, which aims to solve the problem that in existing 2-chloronicotinic acid separation and purification devices, the filter box is an integral structure, so after a period of use, the filter screen becomes clogged, making it inconvenient to open the filter box to replace and clean the filter screen, thus affecting the subsequent filtration effect.

[0006] To achieve the above objectives, this utility model provides a 2-chloronicotinic acid mother liquor separation and purification device, including a base plate, a support, and purification components, wherein the support is fixedly connected to one side of the base plate;

[0007] The purification assembly includes a mixing component, a first solenoid valve, a delivery hose, a connector, a threaded cap, a mounting bracket, a filter box, a filter element, a snap-on cover, two fixing components, a connector, a condenser tube, and a separation mechanism.

[0008] The mixing component is disposed on one side of the support; the first solenoid valve is connected to the mixing component and located on one side of the mixing component; the delivery hose is connected to the first solenoid valve and located on one side of the first solenoid valve; the connector is connected to the delivery hose and located on one side of the delivery hose; the threaded cap is rotatably connected to the connector and located on one side of the connector; the fixing frame is fixedly connected to the support and located on one side of the support; the filter box is fixedly connected to the fixing frame and located on one side of the fixing frame; the filter element is disposed inside the filter box; the snap-fit ​​cover is located on one side of the filter box; the two fixing components are respectively disposed on both sides of the snap-fit ​​cover; the connector is disposed on one side of the snap-fit ​​cover; the condenser is disposed on one side of the filter box; the separation mechanism is disposed on one side of the condenser.

[0009] The mixing component includes a mixing tank, a feed hopper, a stirring motor, a stirring paddle, and a heating device. The mixing tank is fixedly connected to the support frame and communicates with the first solenoid valve, and is located on one side of the support frame. The feed hopper communicates with the mixing tank and is located on one side of the mixing tank. The stirring motor is fixedly connected to the mixing tank and is located on one side of the mixing tank. The stirring paddle is fixedly connected to the output end of the stirring motor and is located on one side of the stirring motor. The heating device is located on one side of the mixing tank.

[0010] The filter element includes a shelf, a magnetic filter screen, and a handle. The shelf is fixedly connected to the filter box and located inside the filter box. The magnetic filter screen is located on one side of the shelf. The handle is fixedly connected to the magnetic filter screen and located on one side of the magnetic filter screen.

[0011] The fastener includes a fixing plate and a locking pin. The fixing plate is fixedly connected to the snap-fit ​​cover and is located on one side of the snap-fit ​​cover. The locking pin is threadedly connected to the fixing plate and is located on one side of the fixing plate.

[0012] The connector includes a connecting pipe and an external threaded frame. The connecting pipe is fixedly connected to the snap-fit ​​cover and is located on one side of the snap-fit ​​cover. The external threaded frame is fixedly connected to the connecting pipe and is located on one side of the connecting pipe.

[0013] This invention relates to a 2-chloronicotinic acid mother liquor separation and purification device. During the separation and purification of 2-chloronicotinic acid mother liquor, the mother liquor and water are fed into a mixing chamber, where they are thoroughly mixed. Then, the first solenoid valve is opened, and the mixed liquid is conveyed through a delivery hose to a filter box for impurity filtration. After impurity filtration, the liquid is conveyed to a condenser for condensation, and then to a separation mechanism for further separation and purification. After a period of use, the condenser needs to be cleaned and purified. When cleaning and replacing the filter element, twist the threaded cap to loosen the connector on the snap-fit ​​cover, allowing the delivery hose to be removed from the snap-fit ​​cover. Then, operate the fixing pieces on both sides of the snap-fit ​​cover to loosen the filter box and remove the snap-fit ​​cover from the filter box. Subsequently, the filter element is replaced and cleaned. This solves the problem in existing 2-chloronicotinic acid separation and purification devices where, due to the integrated structure of the filter box, the filter screen becomes clogged after a period of use, making it inconvenient to open the filter box to replace and clean the filter screen, thus affecting the subsequent filtration effect. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0015] Figure 1 is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 is a structural schematic diagram of the entire utility model from another angle.

[0017] Figure 3 is an overall sectional view of this utility model.

[0018] Figure 4 is a magnified view of part A in Figure 3.

[0019] 101-Base plate, 102-Bracket, 103-Mixing component, 104-First solenoid valve, 105-Conveying hose, 106-Plug, 107-Threaded cap, 108-Fixing frame, 109-Filter box, 110-Filter element, 111-Snap-on cover, 112-Fixing component, 113-Connecting component, 114-Condenser, 115-Separation mechanism, 116-Mixing box, 117-Feed hopper, 118-Stirring motor, 119-Stirring paddle, 120-Heating device, 121-Placement rack, 122-Magnetic filter screen, 123-Handle, 124-Fixing plate, 125-Locking pin, 126-Connecting pipe, 127-External threaded frame. Detailed Implementation

[0020] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0021] Please refer to Figures 1-4, where Figure 1 is a schematic diagram of the overall structure of the present invention, Figure 2 is a schematic diagram of the overall structure of the present invention from another angle, Figure 3 is a cross-sectional view of the present invention, and Figure 4 is a partial enlarged view of point A in Figure 3.

[0022] This utility model discloses a 2-chloronicotinic acid mother liquor separation and purification device, comprising a base plate 101, a support 102, and a purification assembly. The purification assembly includes a mixing component 103, a first solenoid valve 104, a conveying hose 105, a connector 106, a threaded cap 107, a fixing frame 108, a filter box 109, a filter element 110, a snap-fit ​​cover 111, two fixing components 112, a connecting component 113, a condenser pipe 114, and a separation mechanism 115. The mixing component 103 includes a mixing tank 116, a feed hopper 117, a stirring motor 118, and a stirring paddle 119. The filter element 110 includes a placement rack 121, a magnetic filter screen 122, and a handle 123. The fixing element 112 includes a fixing plate 124 and a locking pin 125. The connecting element 113 includes a connecting pipe 126 and an external threaded frame 127. The aforementioned solution solves the problem in existing 2-chloronicotinic acid separation and purification devices where, because the filter box 109 is an integral structure, the filter screen becomes clogged after a period of use, making it inconvenient to open the filter box 109 to replace and clean the filter screen, thus affecting the subsequent filtration effect.

[0023] In this specific embodiment, the base plate 101, together with the bracket 102, is used to assemble the purification component.

[0024] The mixing component 103 is disposed on one side of the support 102; the first solenoid valve 104 is connected to the mixing component 103 and located on one side of the mixing component 103; the delivery hose 105 is connected to the first solenoid valve 104 and located on one side of the first solenoid valve 104; the connector 106 is connected to the delivery hose 105 and located on one side of the delivery hose 105; the threaded cap 107 is rotatably connected to the connector 106 and located on one side of the connector 106; the fixing bracket 108 is fixedly connected to the support 102 and located on one side of the support 102; the filter box 109 is connected to the fixing bracket 102. A frame 108 is fixedly connected and located on one side of the frame 108; a filter element 110 is disposed inside the filter box 109; a snap-fit ​​cover 111 is located on one side of the filter box 109; two fixing members 112 are respectively disposed on both sides of the snap-fit ​​cover 111; a connecting member 113 is disposed on one side of the snap-fit ​​cover 111; a condenser tube 114 is disposed on one side of the filter box 109; a separation mechanism 115 is disposed on one side of the condenser tube 114. During the separation and purification of 2-chloronicotinic acid mother liquor, the mother liquor and water are transported into the mixing member 103, whereby the mixing member 103 ensures thorough mixing of the mother liquor and water. Then, the first solenoid valve 104 is opened, and the mixed liquid is delivered to the filter box 109 through the delivery hose 105. Impurities are filtered through the filter box 109. After filtration, the liquid is delivered to the condenser 114, where it is condensed. The liquid is then delivered to the separation mechanism 115 for separation and purification. The separation mechanism 115 is existing technology and can preferably be any commercially available centrifuge that uses centrifugal force for separation, such as the PD1250-N flatbed hanging bag centrifuge. When the filter element 110 needs cleaning and replacement after a period of use, the threaded cap is twisted. 107 drives the connector 106 to loosen the connector 113 on the snap-fit ​​cover 111, so that the delivery hose 105 is removed from the snap-fit ​​cover 111. Then, the fixing parts 112 on both sides of the snap-fit ​​cover 111 are operated to loosen the filter box 109, and the snap-fit ​​cover 111 is removed from the filter box 109. Then, the filter element 110 is replaced and cleaned. This solves the problem in the existing 2-chloronicotinic acid separation and purification device that, because the filter box 109 is an integral structure, the filter screen becomes clogged after a period of use, making it inconvenient to open the filter box 109 to replace and clean the filter screen, thus affecting the subsequent filtration effect.

[0025] Secondly, the mixing tank 116 is fixedly connected to the support 102 and communicates with the first solenoid valve 104, and is located on one side of the support 102; the feed hopper 117 communicates with the mixing tank 116 and is located on one side of the mixing tank 116; the stirring motor 118 is fixedly connected to the mixing tank 116 and is located on one side of the mixing tank 116; the stirring paddle 119 is fixedly connected to the output end of the stirring motor 118 and is located on one side of the stirring motor 118; the heating device 120 is disposed on one side of the mixing tank 116. The feed hopper 117 is used to add mother liquor and water, and then the stirring motor 118 drives the stirring paddle 119 to rotate to fully mix the mother liquor and water. The heating device 120 is used to heat the liquid in the mixing tank 116 to increase the mixing effect.

[0026] Furthermore, the placement rack 121 is fixedly connected to the filter box 109 and located inside the filter box 109; the magnetic filter screen 122 is located on one side of the placement rack 121; the handle 123 is fixedly connected to the magnetic filter screen 122 and located on one side of the magnetic filter screen 122. The placement rack 121 is used to place the magnetic filter screen 122 for assembly. When replacing or cleaning the magnetic filter screen 122, the magnetic filter screen 122 is lifted from the placement rack 121 by holding the handle 123, thus completing the disassembly of the magnetic filter screen 122. The size of the magnetic filter screen 122 is almost in close contact with the placement rack 121.

[0027] In addition, the fixing plate 124 is fixedly connected to the fastening cover 111 and is located on one side of the fastening cover 111; the locking pin 125 is threadedly connected to the fixing plate 124 and is located on one side of the fixing plate 124. The fixing plate 124 is used to fit the fixing parts on both sides of the filter box 109, and then the fixing parts are inserted by the locking pin 125 to complete the fixing of the fastening cover 111.

[0028] Furthermore, the connecting tube 126 is fixedly connected to the snap-fit ​​cover 111 and is located on one side of the snap-fit ​​cover 111; the external threaded frame 127 is fixedly connected to the connecting tube 126 and is located on one side of the connecting tube 126. The connecting tube 126 is used to insert into the connector 106, and then the external threaded frame 127 is threadedly connected to the threaded cap 107 to complete the fixing of the insertion of the connecting tube 126 and the connector 106. In the design process of the connecting tube 126, a sealing gasket can be preferably set to increase the sealing performance of the insertion of the connector 106 and the connecting tube 126.

[0029] When using this invention, the mother liquor and water are fed into the mixing component 103, where they are thoroughly mixed. Then, the first solenoid valve 104 is opened, and the mixed liquid is delivered to the filter box 109 via the delivery hose 105. Impurities are filtered through the filter box 109. After filtration, the liquid is delivered to the condenser 114, where it is condensed. The liquid is then delivered to the separation mechanism 115 for separation and purification. When the magnetic filter screen 122 needs cleaning and replacement after a period of use, the threaded cap 107 is twisted to loosen the external thread frame 12 on the connecting pipe 126 of the snap-fit ​​cover 111, causing the connector 106 to release the external thread frame 12 on the connecting pipe 126. 7. Remove the delivery hose 105 from the snap-fit ​​cover 111. Then, operate the locking pins 125 on the fixing plates 124 on both sides of the snap-fit ​​cover 111 to loosen the fixing parts of the filter box 109 at the corresponding positions, and remove the snap-fit ​​cover 111 from the filter box 109. Then, hold the handle 123 to lift the magnetic filter screen 122 from the placement rack 121 to complete the disassembly of the magnetic filter screen 122. Then, replace and clean it. This solves the problem in the existing 2-chloronicotinic acid separation and purification device that, because the filter box 109 is an integral structure, the filter screen becomes clogged after a period of use, making it inconvenient to open the filter box 109 to replace and clean the filter screen, thus affecting the subsequent filtration effect.

[0030] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A 2-chloronicotinic acid mother liquor separation and purification device, comprising a base plate and a support, wherein the support is fixedly connected to one side of the base plate, characterized in that, It also includes a purification component, which comprises a mixing component, a first solenoid valve, a delivery hose, a connector, a threaded cap, a mounting bracket, a filter box, a filter element, a snap-fit ​​cover, two fixing components, a connector, a condenser tube, and a separation mechanism. The mixing component is disposed on one side of the bracket. The first solenoid valve communicates with the mixing component and is located on one side of the mixing component. The delivery hose communicates with the first solenoid valve and is located on one side of the first solenoid valve. The connector communicates with the delivery hose and is located on one side of the delivery hose. The threaded cap is rotatably connected to the connector and is located on one side of the connector. The mounting bracket is fixedly connected to the bracket and is located on one side of the bracket. The filter box is fixedly connected to the mounting bracket and is located on one side of the mounting bracket. The filter element is disposed inside the filter box. The snap-fit ​​cover is located on one side of the filter box. The two fixing components are respectively disposed on both sides of the snap-fit ​​cover. The connector is disposed on one side of the snap-fit ​​cover. The condenser tube is disposed on one side of the filter box. The separation mechanism is disposed on one side of the condenser tube.

2. The 2-chloronicotinic acid mother liquor separation and purification device as described in claim 1, characterized in that, The mixing unit includes a mixing tank, a feeding hopper, a stirring motor, a stirring paddle, and a heating device. The mixing tank is fixedly connected to the support and communicates with the first solenoid valve, and is located on one side of the support. The feeding hopper communicates with the mixing tank and is located on one side of the mixing tank. The stirring motor is fixedly connected to the mixing tank and is located on one side of the mixing tank. The stirring paddle is fixedly connected to the output end of the stirring motor and is located on one side of the stirring motor. The heating device is located on one side of the mixing tank.

3. The 2-chloronicotinic acid mother liquor separation and purification device as described in claim 2, characterized in that, The filter element includes a shelf, a magnetic filter screen, and a handle. The shelf is fixedly connected to the filter box and located inside the filter box. The magnetic filter screen is located on one side of the shelf. The handle is fixedly connected to the magnetic filter screen and located on one side of the magnetic filter screen.

4. The 2-chloronicotinic acid mother liquor separation and purification device as described in claim 3, characterized in that, The fastener includes a fixing plate and a locking pin. The fixing plate is fixedly connected to the snap-fit ​​cover and is located on one side of the snap-fit ​​cover. The locking pin is threadedly connected to the fixing plate and is located on one side of the fixing plate.

5. The 2-chloronicotinic acid mother liquor separation and purification device as described in claim 4, characterized in that, The connector includes a connecting pipe and an external threaded frame. The connecting pipe is fixedly connected to the snap-fit ​​cover and is located on one side of the snap-fit ​​cover. The external threaded frame is fixedly connected to the connecting pipe and is located on one side of the connecting pipe.

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