Filter capable of recycling methanol for chemical production
By designing a filter with filtration, tapping, and cooling mechanisms, the problems of low filtration efficiency of p-chloro-o-aminophenol and inability to recover methanol were solved, achieving high-efficiency filtration and methanol recycling, and reducing production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-08-09
- Publication Date
- 2026-03-27
AI Technical Summary
Existing p-chloro-o-aminophenol filters are difficult to use continuously, have low filtration efficiency, and cannot recover and reuse methanol, resulting in high production costs.
A filter was designed that includes a filtration mechanism, a waste liquid storage mechanism, a knocking mechanism, and a cooling mechanism. The filter is driven by a motor to rotate the screen cylinder for filtration, and methanol is recovered by combining a heater and a cooling tank. The knocking mechanism is used to prevent the screen cylinder from clogging, thereby achieving continuous filtration and methanol recovery.
It achieves efficient filtration of chloro-o-aminophenol, avoids screen clogging, reduces production costs, and recovers methanol through heating and cooling processes, thereby improving resource utilization.
Smart Images
Figure CN116808690B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to a filter capable of recycling methanol for chemical production. BACKGROUND
[0002] Amino-4-chlorophenol is an organic compound with the chemical formula C6H6ClNO, which is mainly used for preparing acid medium RH, acid complex purple 5RN and reactive dyes, and can also be used for preparing raw material medicine chlorzoxazone. The amino-4-chlorophenol is obtained by adding hydrogen, water and methanol under the action of a catalyst after adding sodium hydroxide and nitric acid for neutralization reaction after nitration reaction in a nitration kettle with p-chlorophenol as raw material, and the obtained mixture of p-chloro-o-aminophenol powder, water and methanol is filtered, and the substance left on the filter screen is the required p-chloro-o-aminophenol; the p-chloro-o-aminophenol is purified through crystallization.
[0003] The p-chloro-o-aminophenol is a widely used raw material, and the filter is the main equipment for separating the p-chloro-o-aminophenol, so it is difficult to continuously discharge the p-chloro-o-aminophenol while filtering; too much p-chloro-o-aminophenol accumulated on the filter screen will affect the filtering efficiency and need to be taken out after stopping the machine, so the filtering efficiency is low; moreover, the methanol exists in the wastewater after filtering, so the methanol cannot be recycled and reused, which causes waste of raw materials and difficulty in reducing production cost. SUMMARY
[0004] The application aims at solving the problems that the existing p-chloro-o-aminophenol cannot be continuously filtered, the filtering efficiency is low, and the methanol required for reaction cannot be recycled and reused.
[0005] The application realizes the above-mentioned purpose through the following technical scheme, a filter capable of recycling methanol for chemical production, which comprises a filter box and a conveying pipe, the conveying pipe is horizontally installed at the top of the right side wall of the filter box, the filter capable of recycling methanol for chemical production further comprises a filtering mechanism, a waste liquid storage mechanism, a guide plate, a collecting groove, a knocking mechanism, a cooling mechanism and an air pipe, the filtering mechanism is horizontally installed at the top of the left side wall of the filter box and filters the solution; the waste liquid storage mechanism is installed at the middle part of the bottom of the inner cavity of the filter box and can store and heat the waste liquid; the guide plate is obliquely installed at the top of the right side of the waste liquid storage mechanism and can guide the solid particles discharged from the filtering mechanism; the collecting groove is placed at the bottom right end of the inner cavity of the filter box and is located directly below the guide plate; the knocking mechanism is installed at the middle part of the left side wall of the filter box and vibrates the filtering mechanism by knocking; the cooling mechanism is installed at the top of the filter box; one end of the air pipe is installed at the top of the waste liquid storage mechanism, and the other end extends out of the upper surface of the filter box and is connected with the top of the cooling mechanism.
[0006] The filtering mechanism comprises a mounting plate, a first motor, a rotating disc, a mesh cylinder and a baffle strip, the mounting plate is fixedly connected to the top end of the left side wall of the filter box, the first motor is installed on the left side wall of the mounting plate, the rotating disc is rotatably installed on the output end of the first motor, the mesh cylinder is transversely installed on the right side wall of the rotating disc, and the solution is filtered through the mesh holes of the mesh cylinder, and the baffle strip is arranged on the inner wall of the mesh cylinder.
[0007] The mesh cylinder is driven to rotate by the first motor, the inner wall of the mesh cylinder is cyclically contacted with the p-chloro-o-aminophenol mixed solution, and the filtering is realized by the mesh holes of the mesh cylinder.
[0008] Specifically, the baffle strip is spirally arranged on the inner wall of the mesh cylinder.
[0009] Specifically, the waste liquid storage mechanism comprises a liquid storage tank, an electromagnetic valve, a first manual valve, a heater and a hopper, the liquid storage tank is installed in the middle of the bottom end of the inner cavity of the filter box, the top end of the liquid storage tank is connected with the bottom end of the air pipe, the electromagnetic valve and the first manual valve are respectively installed in the middle of the upper and lower ends of the liquid storage tank, the heater is arranged at the bottom of the inner cavity of the liquid storage tank, and the liquid stored in the liquid storage tank is heated; and the hopper is installed at the top end of the electromagnetic valve, and the width of the hopper is greater than the length of the mesh cylinder.
[0010] The waste liquid in the liquid storage tank is heated by the heater, the methanol is preferentially gasified due to the low boiling point of the methanol, and thus the methanol can be separated from the waste liquid.
[0011] Specifically, the knocking mechanism comprises a supporting plate, a second motor, a cam, a guide rod, a spring, a knocking rod and a baffle rod, the supporting plate is installed in the middle of the left inner wall of the filter box, the second motor is installed at the right end of the rear side wall of the supporting plate, the cam is installed on the output end of the second motor and is driven to rotate by the second motor, the guide rod is transversely installed on the left side wall of the supporting plate, the spring and the knocking rod are respectively sleeved on the left and right ends of the outer wall of the guide rod, the knocking rod moves to the right and contacts the left side wall of the rotating disc under the elastic force of the spring, and the baffle rod is installed at the front bottom end of the knocking rod.
[0012] The baffle rod is driven to move to the left by the counterclockwise rotation of the cam driven by the second motor, the knocking rod is allowed to move to the left and store the elastic force, and the knocking rod moves to the right and knocks the rotating disc under the elastic force of the spring, so that the mesh cylinder is vibrated.
[0013] Specifically, when the cam rotates counterclockwise, the baffle rod is driven to move to the left, and the knocking rod moves to the left.
[0014] Specific, the cooling mechanism includes cooling box, first partition, second partition, joint, baffle, second manual valve and copper pipe, cooling box fixedly connected on the upper surface of the filter box, the left end of the upper surface of the cooling box is connected with the top end of the air pipe, the gas generated in the liquid storage tank is introduced into the inner cavity of the cooling box through the air pipe; the first partition is vertically installed on the left side of the inner cavity of the cooling box; the second partition is transversely installed on the left inner wall center position of the cooling box, and the space of the cooling box blocked by the first partition is equally divided into the first cavity and the second cavity by the second partition; the number of joints is two, which are installed on the top right end and the bottom left end of the cooling box respectively, and the two joints are connected with the water outlet and the backflow port of the water cooler respectively, so that the cooling water circulates in the cooling box; the number of baffles is several, which are installed on the upper and lower inner walls of the cooling box from left to right; the second manual valve is installed on the bottom end of the left side wall of the cooling box; the number of copper pipes is several, which are all installed on the right side wall of the first partition, and the two ends of the copper pipe are located in the first cavity and the second cavity on the upper and lower ends of the first partition respectively;
[0015] The cooling water passes through the cooling box, and the gasified methanol moves in the copper pipe to be cooled, and the methanol is liquefied to obtain liquid methanol.
[0016] Specifically, the plurality of baffles are equally distributed in the inner cavity of the cooling box, so that the cooling box forms a serpentine flow channel.
[0017] Specifically, the plurality of copper pipes are V-shaped, and the diameters of the plurality of copper pipes gradually increase from inside to outside, the top end of the second partition is provided with a trapezoidal partition block, the trapezoidal partition block can gradually reduce the space inside the first cavity from bottom to bottom, and each layer of the ladder of the trapezoidal partition block corresponds to the inlet of each copper pipe at the top end, so that the amount of methanol entering the plurality of copper pipes from inside to outside gradually increases by cooperation of the trapezoidal partition block and copper pipes with different diameters.
[0018] The beneficial effects of the present application are:
[0019] 1、The first motor drives the rotating disc and the meshing cylinder to rotate, the meshing cylinder filters the p-chloro-o-aminophenol mixture, as the meshing cylinder rotates clockwise, the blocking strip pushes the p-chloro-o-aminophenol powder to move to the right, so that the p-chloro-o-aminophenol powder is discharged from the meshing cylinder, realizing the filtration of p-chloro-o-aminophenol, the second motor drives the cam to rotate counterclockwise, the cam can extrude the blocking rod to the left side, and then the knocking rod moves to the left side to store power, when the cam and the blocking rod are separated, the spring pushes the knocking rod to move to the right by the elastic force, the knocking rod knocks the rotating disc, and the meshing cylinder vibrates, so that the meshing cylinder is prevented from being blocked, therefore, the p-chloro-o-aminophenol mixture can be continuously filtered, the meshing cylinder is prevented from being blocked, and the filtering efficiency is high.
[0020] 2、The application can collect waste liquid through the funnel, the heater can heat the waste liquid entering the liquid storage tank, the methanol is heated and gasified to enter the cooling tank, the gasified methanol moves in the copper pipe, the cooling water of the cooling tank cools the copper pipe, the gasified methanol is liquefied after cooling, and is discharged from the second manual valve, so that the methanol is extracted from the waste liquid, the methanol extraction function is achieved, the methanol is recycled, and the production cost is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 It is a structural schematic view of the application.
[0022] Figure 2 It is a front view of the application.
[0023] Figure 3 It is a structural schematic view of the net tube of the application.
[0024] Figure 4 It is a front view of the knocking mechanism of the application.
[0025] Figure 5 It is a right view of the knocking mechanism of the application.
[0026] Figure 6 It is a structural schematic view of the cooling mechanism of the application.
[0027] Figure 7 It is a front view of the cooling mechanism of the application.
[0028] In the figure: 1, filter tank; 2, conveying pipe; 3, filtering mechanism; 4, waste liquid storage mechanism; 5, guide plate; 6, collection groove; 7, knocking mechanism; 8, cooling mechanism; 9, air pipe; 31, mounting plate; 32, first motor; 33, rotating disc; 34, net tube; 35, blocking strip; 41, liquid storage tank; 42, electromagnetic valve; 43, first manual valve; 44, heater; 45, funnel; 71, support plate; 72, second motor; 73, cam; 74, guide rod; 75, spring; 76, knocking rod; 77, blocking rod; 81, cooling tank; 82, first partition plate; 83, second partition plate; 84, joint; 85, baffle; 86, second manual valve; 87, copper pipe, 88, trapezoidal separation block. DETAILED DESCRIPTION
[0029] In order to make the technical means, creative features, purposes and effects realized by the application easy to understand, the preferred embodiments of the application are further described below in combination with specific implementation manners and the description of the drawings.
[0030] Please refer to Figures 1-7The application provides a filter capable of recycling methanol for chemical production, which comprises a filter box 1 and a conveying pipe 2 horizontally installed on the right side of the filter box 1, the conveying pipe 2 is communicated with a reaction kettle and can guide p-chloro-o-aminophenol mixed solution into the conveying pipe 2, further comprising a filtering mechanism 3, a waste liquid storage mechanism 4, a guide plate 5, a collecting groove 6, a knocking mechanism 7, a cooling mechanism 8 and a gas pipe 9, the filtering mechanism 3 is fixedly connected to the top of the left side wall of the filter box 1, the conveying pipe 2 is located at the center of the filtering mechanism 3 and provides p-chloro-o-aminophenol mixed solution for the filtering mechanism 3, the waste liquid storage mechanism 4 is installed at the bottom center of the inner cavity of the filter box 1 and collects waste liquid falling from the filtering mechanism 3, the guide plate 5 is obliquely installed at the right top of the waste liquid storage mechanism 4, the collecting groove 6 is placed in the inner cavity of the filter box 1 and is located directly below the guide plate 5, the p-chloro-o-aminophenol filtered out is stored through the collecting groove 6, the knocking mechanism 7 is fixedly connected to the middle of the left side of the filter box 1, the cooling mechanism 8 is fixedly connected to the upper surface of the filter box 1, and the gas pipe 9 communicates the waste liquid storage mechanism 4 and the cooling mechanism 8;
[0031] The filtering mechanism 3 comprises an installation plate 31 fixedly connected to the top of the left side wall of the filter box 1, a first motor 32 is installed on the left side of the installation plate 31, an rotating disc 33 capable of rotating around its own axis is installed at the output end of the first motor 32, a mesh cylinder 34 is horizontally installed on the right side wall of the rotating disc 33, the mesh cylinder 34 filters the p-chloro-o-aminophenol mixed solution by using its own mesh hole when rotating, and a blocking strip 35 is arranged on the inner wall of the mesh cylinder 34 and blocks the p-chloro-o-aminophenol solid retained in the mesh cylinder 34.
[0032] As a preferred scheme, further, the blocking strip 35 is spirally arranged on the inner wall of the mesh cylinder 34, when the mesh cylinder 34 rotates clockwise, the p-chloro-o-aminophenol powder is located at the bottom of the mesh cylinder 34 due to its own gravity, the blocking strip 35 pushes the p-chloro-o-aminophenol powder by using its own slope and promotes the p-chloro-o-aminophenol powder to move to the right side, and finally the p-chloro-o-aminophenol powder is discharged from the right opening of the mesh cylinder 34.
[0033] As a preferred scheme, further, the waste liquid storage mechanism 4 comprises a liquid storage tank 41 fixedly connected to the bottom center of the inner cavity of the filter box 1, an electromagnetic valve 42 and a first manual valve 43 are respectively installed at the center positions of the upper and lower ends of the liquid storage tank 41, the waste liquid in the liquid storage tank 41 can be discharged by opening the first manual valve 43, a heater 44 is installed at the bottom of the inner cavity of the liquid storage tank 41 and plays a heating role on the waste liquid, the methanol in the waste liquid is gasified by heating and can enter the cooling mechanism 8 along the gas pipe 9 to separate the methanol, and a hopper 45 is installed at the top end of the electromagnetic valve 42 and collects the waste liquid falling from the mesh cylinder 34.
[0034] As a preferred scheme, further, the knocking mechanism 7 comprises a support plate 71 fixedly connected to the middle of the left inner wall of the filter box 1, a second motor 72 installed at the right end of the back of the support plate 71, a cam 73 installed at the output end of the second motor 72, two guide rods 74 transversely installed at the right side of the support plate 71, a spring 75 and a knocking rod 76 respectively sleeved at the left and right sides of the outer wall of the guide rod 74, the guide rod 74 limiting the knocking rod 76, the knocking rod 76 having left and right sliding capability, the knocking rod 76 being pushed to move right under the elastic force of the spring 75, the front bottom end of the knocking rod 76 being installed with a blocking rod 77, the blocking rod 77 being in the shape of a cylinder, the cam 73 being subjected to the curved surface when being in contact with the blocking rod 77, the cam 73 pushing the blocking rod 77 to move stably.
[0035] As a preferred scheme, further, when the cam 73 rotates counterclockwise, the blocking rod 77 is pushed to the left, the knocking rod 76 is moved left, and the knocking rod 76 is charged. When the cam 73 is separated from the blocking rod 77, the knocking rod 76 is moved right to knock the rotating disc 33 under the elastic force of the spring 75, the mesh cylinder 34 is vibrated, and the p-chloro-o-aminophenol powder is prevented from blocking the mesh holes of the mesh cylinder 34.
[0036] As a preferred scheme, further, the cooling mechanism 8 comprises a cooling box 81 fixedly connected to the upper surface of the filter box 1, the top end of the cooling box 81 being connected with the top end of the air pipe 9, a first partition plate 82 being vertically installed at the left inner wall of the cooling box 81, a second partition plate 83 being installed at one end of the left side wall of the first partition plate 82, the other end of the second partition plate 83 being connected with the left inner wall of the cooling box 81, the left side of the cooling box 81 being equally divided into two spaces, i.e., a first cavity and a second cavity, through the second partition plate 83, the first cavity being used for containing methanol gas, and the second cavity being used for collecting liquefied methanol liquid, a connector 84 being installed at the top right end and the bottom left end of the cooling box 81, the two connectors 84 being respectively communicated with the water outlet and the backflow port of the water cooler, so that the cooling water is circulated in the cooling box 81, baffle plates 85 being installed on the upper and lower inner walls of the cooling box 81 from left to right, a second manual valve 86 being installed at the bottom end of the left side wall of the cooling box 81, the methanol liquid being discharged by opening the second manual valve 86, copper pipes 87 being installed on the right side of the first partition plate 82 from top to bottom, and the copper pipes 87 penetrating through the inside of the baffle plates 85, the inlet of the copper pipes 87 being in the first cavity, the outlet of the copper pipes 87 being in the second cavity, the copper pipes 87 having good heat conductivity, and the copper pipes 87 being cooled by the cooling water, so that the methanol is converted from gas to liquid.
[0037] As a preferred scheme, further, the several baffle plates 85 are equally distributed in the inner cavity of the cooling box 81, so that the cooling box 81 forms a serpentine flow channel, the flow distance of the cooling water in the cooling box 81 is prolonged, and the cooling effect of the copper pipes 87 is improved.
[0038] As a preferred solution, further, the shape of the copper pipe 87 is V-shaped, since the copper pipe 87 is in an inclined state, when the methanol is converted into liquid, the methanol liquid flow is promoted, the methanol is prevented from remaining in the copper pipe 87, at the same time, the moving path of the methanol gas can be prolonged, the space occupied is small, a plurality of copper pipes 87 can be arranged, and thus the recovery efficiency is improved.
[0039] And the diameter of the plurality of copper pipes 87 gradually increases from inside to outside, the top of the second partition plate 83 is provided with a trapezoidal partition block 88, the trapezoidal partition block 88 can gradually reduce the space inside the first cavity from bottom to bottom, each layer of the trapezoidal partition block 88 corresponds to the inlet of each copper pipe 87 at the top, and the trapezoidal partition block 88 is matched with the copper pipes 87 of different diameters, so that the methanol entering amount of the plurality of copper pipes 87 from inside to outside gradually increases, that is, the methanol entering amount of the longest and largest diameter copper pipe 87 is the largest.
[0040] Since the length of the plurality of copper pipes 87 gradually increases from inside to outside, the area and time of the plurality of copper pipes 87 contacting with the cooling water gradually increase, that is, the longest and largest diameter copper pipe 87 has the largest contact area and the longest contact time, so the cooling effect is better, and thus the methanol entering the first cavity is gradually reduced in space under the action of the trapezoidal partition block 88, so that the amount of methanol gradually decreases, that is, the amount of methanol entering the longest and largest diameter copper pipe 87 is the largest, and the amount of methanol entering the shortest and smallest diameter copper pipe 87 is the smallest, and as the length and diameter of the copper pipe 87 gradually decrease, the amount of methanol entering gradually decreases, so when the cooling water is used to cool the plurality of copper pipes 87, the conversion rate of methanol in the copper pipe 87 can be ensured, the methanol liquefaction effect can be improved, and the methanol recovery rate is improved.
[0041] Working principle:
[0042] Step one, the p-chloro-o-aminophenol mixed solution is introduced into the mesh cylinder 34 through the conveying pipe 2, and the mesh cylinder 34 is driven to rotate clockwise by the first motor 32, the mesh cylinder 34 filters the p-chloro-o-aminophenol mixed solution by using the mesh hole itself, the liquid passes through the mesh hole and falls into the hopper 45, and the p-chloro-o-aminophenol powder is blocked in the mesh cylinder 34, and as the mesh cylinder 34 rotates, the blocking strip 35 pushes the p-chloro-o-aminophenol powder to move to the right, and finally the p-chloro-o-aminophenol powder is rolled into the collecting groove 6 under the guidance of the guide plate 5, so that the p-chloro-o-aminophenol is filtered;
[0043] Step two, through the second motor 72 drive cam 73 counterclockwise rotation, cam 73 to the left side of the lever 77, prompting the knocking rod 76 along the guide rod 74 to the left side of the force storage, when the cam 73 off the lever 77, knocking rod 76 swing restraint, under the action of spring 75 knocking rod 76 right knock turntable 33, prompting the net cylinder 34 vibration, can prevent the p-chloro-o-aminophenol powder block net cylinder 34 mesh, and facilitate the p-chloro-o-aminophenol in the net cylinder 34 movement;
[0044] Step three, open the electromagnetic valve 42, funnel 45 waste liquid into the storage tank 41, heater 44 on the waste liquid heating, methanol preferential gasification, from the waste liquid, through the air pipe 9 into the cooling tank 81, methanol gas along the copper pipe 87 flow;
[0045] Step four, under the action of the cooling water to the cooling tank 81, under the baffle 85 block, cooling water in the cooling tank 81 in the form of a snake, through the cooling tank 81 every corner, copper pipe 87 cooling (since the cold water in the present technical solution is in the state of circulation, when the top of the circulating cold water and cooling tank 81 in the warm water mixed in the mixing process, the cold water will sink, while the warm water will float, thus using a plurality of up and down staggered baffle 85 formed a kind of convection circulation, thus ensuring the uniformity of the cooling tank 81 in the cold water, can achieve better cooling), methanol in copper pipe 87 cooling after liquefaction, methanol liquid can flow to the left side of the cooling tank 81, open the second manual valve 86 can discharge methanol liquid, realize the extraction of methanol liquid, realize the reuse of methanol.
[0046] The technical features of the above embodiments can be combined in any way. To make the description concise, not all possible combinations of the technical features in the above embodiments are described, however, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application.
Claims
1. A filter for chemical production capable of recovering methanol, comprising a filter box (1) and a conveying pipe (2), wherein the conveying pipe (2) is horizontally installed at the top right side wall of the filter box (1), characterized in that, The filter for chemical production capable of recovering methanol also includes: The filtration mechanism (3) is horizontally installed at the top of the left side wall of the filter box (1) to filter the solution; Waste liquid storage mechanism (4) is installed in the middle of the bottom of the inner cavity of the filter box (1), which can realize the storage and heating of waste liquid; The guide plate (5) is installed at an angle on the top right side of the waste liquid storage mechanism (4) and can guide the solid particles discharged by the filtration mechanism (3). The collection tank (6) is placed at the bottom right end of the inner cavity of the filter box (1), directly below the guide plate (5); A striking mechanism (7) is installed in the middle of the left side wall of the filter box (1) and vibrates it by striking the filter mechanism (3); A cooling mechanism (8) is installed at the top of the filter box (1); The air pipe (9) is installed at one end on the top of the waste liquid storage mechanism (4) and the other end extends out of the upper surface of the filter box (1) and connects to the top of the cooling mechanism (8). The filtration mechanism (3) includes: Mounting plate (31) is fixedly connected to the top of the left side wall of the filter box (1); The first motor (32) is mounted on the left side wall of the mounting plate (31); A turntable (33) capable of rotating around its own axis is mounted at the output end of the first motor (32); A mesh cylinder (34) is installed horizontally on the right side wall of the turntable (33) to achieve solution filtration through the mesh holes of the mesh cylinder (34); A baffle (35) is provided on the inner wall of the mesh cylinder (34); The cooling mechanism (8) includes: Cooling box (81) is fixedly connected to the upper surface of the filter box (1). The left end of the upper surface of the cooling box (81) is connected to the top end of the air pipe (9), so that the gas generated in the liquid storage tank (41) is introduced into the inner cavity of the cooling box (81) through the air pipe (9). The first partition (82) is vertically installed on the left side of the inner cavity of the cooling box (81); The second partition (83) is installed horizontally at the center of the left inner wall of the cooling box (81). The second partition (83) divides the space of the cooling box (81) blocked by the first partition (82) into a first cavity and a second cavity. There are two connectors (84), which are installed at the top right end and bottom left end of the cooling box (81) respectively. The two connectors (84) are connected to the water outlet and return port of the chiller respectively, so that the cooling water circulates in the cooling box (81). Several baffles (85) are installed on the upper and lower inner walls of the cooling box (81) from left to right. The second manual valve (86) is installed at the bottom of the left side wall of the cooling box (81); Several copper tubes (87) are installed on the right side wall of the first partition (82). The two ends of the copper tubes (87) are located in the first cavity and the second cavity at the upper and lower ends of the first partition (82), respectively. The shape of the copper tubes (87) is V-shaped, and the diameter of the copper tubes (87) gradually increases from the inside to the outside. The top of the second partition (83) is provided with a trapezoidal partition block (88). The trapezoidal partition block (88) can gradually reduce the space inside the first cavity from bottom to bottom. Each step of the trapezoidal partition block (88) corresponds to the inlet of each copper tube (87) at the top. By using the trapezoidal partition block (88) in conjunction with copper tubes (87) of different diameters, the amount of methanol entering the copper tubes (87) from the inside to the outside can be gradually increased.
2. The filter for chemical production capable of recovering methanol according to claim 1, characterized in that, The baffles (35) are spirally distributed on the inner wall of the mesh cylinder (34).
3. A filter for chemical production capable of recovering methanol according to claim 2, characterized in that, The waste liquid storage mechanism (4) includes: The liquid storage tank (41) is installed in the middle of the bottom of the inner cavity of the filter box (1), and the top of the liquid storage tank (41) is connected to the bottom of the air pipe (9); The solenoid valve (42) and the first manual valve (43) are respectively installed at the middle of the upper and lower ends of the liquid storage tank (41); A heater (44) is provided at the bottom of the inner cavity of the liquid storage tank (41) to heat the liquid stored in the liquid storage tank (41); A funnel (45) is installed at the top of the solenoid valve (42), and the width of the funnel (45) is greater than the length of the mesh cylinder (34).
4. A filter for chemical production capable of recovering methanol according to claim 3, characterized in that, The striking mechanism (7) includes: A support plate (71) is installed in the middle of the left inner wall of the filter box (1); The second motor (72) is installed on the right end of the rear side wall of the support plate (71); Cam (73) is installed at the output end of the second motor (72) and is driven to rotate by the second motor (72); Two guide rods (74) are installed laterally on the left side wall of the support plate (71); Spring (75) and striking rod (76) are respectively sleeved on the left and right ends of the outer wall of the guide rod (74). Under the elastic force of spring (75), striking rod (76) moves to the right and contacts the left side wall of turntable (33); A stop bar (77) is installed on the bottom front of the striking bar (76).
5. A filter for chemical production capable of recovering methanol according to claim 4, characterized in that, When the cam (73) rotates counterclockwise, it moves the stop lever (77) to the left, causing the striking lever (76) to move to the left.
6. A filter for chemical production capable of recovering methanol according to claim 5, characterized in that, Several baffles (85) are equidistantly distributed in the inner cavity of the cooling box (81), so that the cooling box (81) forms a serpentine flow channel.
Citation Information
Patent Citations
Recovery device with filtering function for production of m-aminophenol
CN217578589U