Salicylic nitrile kettle residue recovery device

Abstract

The invention discloses a hydroxy-benzonitril kettle residue recovery device, and relates to the technical field of kettle residue recovery, the hydroxy-benzonitril kettle residue recovery device comprises a collection box, a reaction kettle is fixedly arranged above the collection box, the upper end of the collection box is provided with a mounting groove, the mounting groove is internally and detachably provided with a protection frame, the upper end of the protection frame is symmetrically and fixedly connected with fixing plates, and the fixing plates are provided with fixing holes; first fixing cylinders are symmetrically and fixedly connected to the upper end of the collecting box, second fixing cylinders are fixedly connected to the sides, close to each other, of the two first fixing cylinders, fixing columns are jointly arranged in the first fixing cylinders and the second fixing cylinders in a sliding mode, the fixing columns are made of stainless steel, and limiting plates are fixedly connected to the upper ends of the fixing columns; the upper end of the second fixing cylinder is fixedly connected with a fixing seat, a lifting plate is slidably arranged in a butt joint groove of the fixing seat, and the fixing seat is in threaded connection with a screw rod, so that the problem that in the prior art, part of liquid can be splashed to a locking bolt, and the locking bolt is rusted is solved.

Description

Technical Field

[0001] The invention relates to the technical field of kettle residue recovery, in particular to a salicylic nitrile kettle residue recovery device. Background Art

[0002] The salicylonitrile kettle residue recovery device is a device specially used for recovering kettle residue (i.e. residue or waste liquid) generated in the production process of salicylonitrile.

[0003] The Chinese utility model with publication number CN212549496U proposes a residual material recovery device for a reactor: the fixing mechanism includes a vertical plate and a locking bolt, the lower end of the vertical plate is fixedly connected to the upper surface of the collecting box, and the locking bolt is threadedly connected to the vertical plate; the protective frame is pulled upward through the hanging ring so that the side plate contacts the inner top surface of the collecting box, and at this time the upper part of the protective frame surrounds the discharge port at the lower end of the reactor body, and the locking bolt is turned so that the locking bolt is in close contact with the side of the protective frame, and the protective frame can be fixed at this time; the solids remaining on the inner wall of the reactor body are discharged from the discharge pipe at the lower end of the reactor body along the water flow and fall onto the metal net.

[0004] The existing technology has the following defects: the metal mesh is installed in the protective frame, and the solids remaining on the inner wall of the reactor body are discharged from the discharge pipe with the water flow, and the metal mesh plays a filtering role. However, when these solid and liquid mixtures fall onto the metal mesh, part of the liquid may splash onto the locking bolts, causing the locking bolts to rust, and the rust will destroy the threaded fit between the locking bolts and the vertical plate, increasing friction and loosening tendency. Summary of the invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a salicylic nitrile kettle residue recovery device, which solves the problem in the prior art that some liquid may splash onto the locking bolt, causing the locking bolt to rust.

[0006] To achieve the above-mentioned purpose, according to an embodiment of the first aspect of the present invention, a salicylic nitrile kettle residue recovery device is proposed, comprising: a collecting box, a reaction kettle is fixedly arranged above the collecting box, an installation groove is provided at the upper end of the collecting box, a protective frame is detachably installed in the installation groove, a fixing plate is symmetrically fixedly connected to the upper end of the protective frame, a fixing hole is provided on the fixing plate, a first fixed cylinder is symmetrically fixedly connected to the upper end of the collecting box, a second fixed cylinder is fixedly connected to the side where the two first fixed cylinders are close to each other, a fixed column is slidably arranged inside the first fixed cylinder and the second fixed cylinder, the fixed column is made of stainless steel, the upper end of the fixed column is fixedly connected to a limiting plate, the upper end of the second fixed cylinder is fixedly connected to a fixed seat, a lifting plate is slidably arranged in the docking groove of the fixed seat, a screw is threadedly connected to the fixed seat, the end of the fixed seat is rotatably connected to the lifting plate, and a drying mechanism is provided on both sides of the fixed column.

[0007] As a further solution of the present invention: a plurality of support rods are fixedly connected to the outside of the reactor in a ring shape, the ends of the support rods away from the reactor are fixedly connected to the upper end surface of the collecting box, an annular tube is fixedly connected to the inside of the reactor near the upper end, a plurality of nozzles are installed at the bottom end of the annular tube, a water inlet pipe is connected to the outside of the reactor, one end of the water inlet pipe is connected to the annular tube, and a discharge pipe is connected to the bottom end of the reactor.

[0008] As a further solution of the present invention: the shape of the protection frame is adapted to the installation groove, the outer side of the collection box is connected with a water outlet pipe, the water outlet pipe is connected with the protection frame, the upper end of the protection frame is open, and the inner wall of the protection frame is provided with two groups of symmetrically arranged slots.

[0009] As a further solution of the present invention: a filtering device is installed inside the protective frame, the filtering device includes a metal mesh, a return frame is fixedly connected to the outside of the metal mesh, two groups of symmetrically arranged blocks are fixedly connected to the outside of the return frame, the blocks are adapted to the slots, and a pull plate is symmetrically fixedly connected to the upper end of the return frame, and the pull plate is "L" shaped.

[0010] As a further solution of the present invention: through holes are provided inside the first fixing tube and the second fixing tube for the fixing column and the limiting plate to be inserted.

[0011] As a further solution of the present invention: a limiting groove is opened inside the second fixed cylinder, the limiting groove is connected with the through hole of the second fixed cylinder, a docking groove connected with the limiting groove is opened at the bottom end of the fixed seat, the screw penetrates the side wall of the fixed seat and extends into the docking groove of the fixed seat, and a protective plate is fixedly connected to the side where the two fixed seats are close to each other.

[0012] As a further solution of the present invention: a protrusion is fixedly provided at the bottom end of the lifting plate, and a recess is provided at the top end of the limiting plate.

[0013] As a further solution of the present invention: two drying mechanisms are symmetrically arranged based on the axial direction of the fixed column, the drying mechanism includes a clamping block and a sleeve rod, and slide grooves are symmetrically opened on the collection box, the bottom end of the clamping block is slidably connected in the slide groove, a semicircular notch is opened on the side of the clamping block close to the fixed column, cleaning cotton is pasted in the semicircular notch, the cleaning cotton is adapted to the fixed column, a sliding rod is fixedly connected to the side of the clamping block away from the fixed column, the sliding rod is slidably connected to the inside of the sleeve rod, a cavity for the sliding rod to slide is opened inside the sleeve rod, a spring is fixedly connected between the inner wall of the sleeve rod and the end of the sliding rod, a fixing plate is fixedly connected to the outside of the sleeve rod, and the bottom end of the fixing plate is fixedly connected to the upper end surface of the collection box.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. When the protective frame needs to be fixed, push the fixing column in the direction of the protective frame so that one end of the fixing column passes through the fixing hole; turn the screw, and the screw drives the lifting plate to move downward until the protruding part of the lifting plate docks with the recessed part of the limit plate to fix the limit plate and the fixing column as a whole, and then fix the protective frame. The fixing column is fixed by using the limit plate and the lifting plate to cooperate with each other. The fixing column is made of stainless steel, which can effectively resist the erosion of corrosive substances such as water, acid, and alkali, reducing the risk of rust.

[0016] 2. When the liquid is discharged downward through the discharge pipe of the reactor, some of the liquid will splash onto the fixed column. The liquid on the fixed column can be cleaned: turn the screw so that the screw drives the lifting plate to move upward, and the protruding part of the lifting plate is away from the recessed part of the limiting plate, so that the limiting plate and the fixed column can move as a whole, and push the fixed column back and forth so that the liquid on the surface of the fixed column is wiped off by the cleaning cotton.

[0017] 3. The cleaning cotton can be replaced: slide the slide bar in the direction of the spring, the spring is compressed, and the slide bar drives the clamp block and the cleaning cotton away from the fixed column. Remove the cleaning cotton and replace it with unused cleaning cotton and stick it on the semicircular notch of the clamp block. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 It is the internal structure diagram of the reaction kettle of the present invention;

[0020] Figure 3 It is a structural schematic diagram of a reaction kettle of the present invention;

[0021] Figure 4 It is a schematic diagram of the structure of the filtering device of the present invention;

[0022] Figure 5 It is a partial structural schematic diagram of the present invention;

[0023] Figure 6 It is a partial structural schematic diagram of the present invention;

[0024] Figure 7 is a cross-sectional view of the second fixed cylinder of the present invention;

[0025] Figure 8 It is a cross-sectional view of the wiping mechanism of the present invention.

[0026] In the figure: 1. Reactor; 101. Annular tube; 102. Water inlet pipe; 2. Collecting box; 21. Mounting groove; 3. Protective frame; 31. Card slot; 32. Fixed plate; 33. Fixed hole; 4. Support rod; 5. Water outlet pipe; 6. Drying mechanism; 61. Clamp block; 62. Slide rod; 63. Sleeve rod; 64. Spring; 65. Fixed sheet; 66. Cleaning cotton; 7. First fixed cylinder; 8. Filter device; 81. Metal mesh; 82. Reciprocating frame; 83. Card block; 84. Pull plate; 9. Second fixed cylinder; 91. Limiting groove; 10. Fixed column; 11. Fixed seat; 12. Protective plate; 13. Screw; 14. Limiting plate; 15. Lifting plate. DETAILED DESCRIPTION

[0027] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] like Figure 1-8 As shown, a salicylonitrile kettle residue recovery device comprises: a collecting box 2, a reactor 1 is fixedly arranged above the collecting box 2, a plurality of support rods 4 are fixedly connected to the outer side of the reactor 1 in a ring shape, and the ends of the support rods 4 away from the reactor 1 are fixedly connected to the upper end surface of the collecting box 2.

[0029] An annular tube 101 is fixedly connected inside the reactor 1 and near the upper end, and a plurality of nozzles are installed at the bottom end of the annular tube 101. An inlet pipe 102 is connected to the outside of the reactor 1. One end of the inlet pipe 102 is connected to the annular tube 101, and the other end of the inlet pipe 102 is connected to a water supply source. A discharge pipe is connected to the bottom end of the reactor 1.

[0030] During the production process of salicylonitrile, some salicylonitrile or other valuable chemicals will remain in the reactor 1, and there may be solid residues on the inner wall of the reactor 1. The water inlet pipe 102 supplies water to the annular pipe 101, and water is sprayed from the nozzle to the inner wall of the reactor 1, so that the water flow washes down the solids remaining on the inner wall of the reactor 1. The solids and chemicals remaining on the inner wall of the reactor 1 are discharged from the discharge pipe along the water flow and fall onto the metal mesh 81.

[0031] A mounting groove 21 is provided at the upper end of the collecting box 2, and a protective frame 3 is detachably installed in the mounting groove 21. The shape of the protective frame 3 is adapted to the mounting groove 21. A water outlet pipe 5 is connected to the outer side of the collecting box 2, and the water outlet pipe 5 is communicated with the protective frame 3. The upper end of the protective frame 3 is open, and two groups of symmetrically arranged card grooves 31 are provided on the inner wall of the protective frame 3. A fixing plate 32 is symmetrically fixedly connected to the upper end of the protective frame 3, and a fixing hole 33 is provided on the fixing plate 32.

[0032] A filter device 8 is installed inside the protection frame 3. The filter device 8 includes a metal mesh 81. A return frame 82 is fixedly connected to the outside of the metal mesh 81. Two groups of symmetrically arranged clamping blocks 83 are fixedly connected to the outside of the return frame 82. The clamping blocks 83 are adapted to the clamping slot 31. A pull plate 84 is symmetrically fixedly connected to the upper end of the return frame 82. The pull plate 84 is "L" shaped. By pressing the clamping block 83 to the bottom of the clamping slot 31, the clamping block 83 is clamped with the clamping slot 31 so that the filter device 8 is fixed inside the protection frame 3 and close to the upper end. By pulling the pull plate 84, the filter device 8 can be easily pulled out of the protection frame 3.

[0033] The upper end of the collecting box 2 is symmetrically fixedly connected with a first fixed cylinder 7, and the sides of the two first fixed cylinders 7 close to each other are fixedly connected with a second fixed cylinder 9. The insides of the first fixed cylinder 7 and the second fixed cylinder 9 are jointly slidably provided with a fixed column 10, and the fixed column 10 is made of stainless steel. The upper end of the fixed column 10 is fixedly connected with a limiting plate 14, and the insides of the first fixed cylinder 7 and the second fixed cylinder 9 are provided with through holes for the fixing column 10 and the limiting plate 14 to be inserted.

[0034] A limiting groove 91 is provided inside the second fixed cylinder 9, and the limiting groove 91 is connected to the through hole of the second fixed cylinder 9. The upper end of the second fixed cylinder 9 is fixedly connected to a fixed seat 11, and the bottom end of the fixed seat 11 is provided with a docking groove connected to the limiting groove 91. A lifting plate 15 is slidably arranged in the docking groove of the fixed seat 11, and a screw 13 is threadedly connected to the fixed seat 11. The screw 13 passes through the side wall of the fixed seat 11 and extends into the docking groove of the fixed seat 11. The end of the fixed seat 11 is rotatably connected to the lifting plate 15.

[0035] The lifting plate 15 and the limiting plate 14 cooperate with each other to fix the fixed column 10: a protrusion is fixedly provided at the bottom end of the lifting plate 15, and a recess is provided at the top end of the limiting plate 14. The fixed column 10 is pushed toward the direction of the protective frame 3, so that one end of the fixed column 10 passes through the fixing hole 33; the screw 13 is rotated, and the screw 13 drives the lifting plate 15 to move downward until the protrusion of the lifting plate 15 is connected with the recess of the limiting plate 14 to fix the limiting plate 14 and the fixed column 10 as a whole, and then the protective frame 3 is fixed.

[0036] A protective plate 12 is fixedly connected to one side of the two fixing seats 11 that are close to each other. The protective plate 12 is used to prevent liquid from splashing onto the screw rod 13 and causing the screw rod 13 to rust.

[0037] A drying mechanism 6 is provided on both sides of the fixed column 10. The two drying mechanisms 6 are symmetrically arranged based on the axial direction of the fixed column 10. The drying mechanism 6 includes a clamping block 61 and a sleeve rod 63. A slide groove is symmetrically provided on the collection box 2. The bottom end of the clamping block 61 is slidably connected in the slide groove. A semicircular notch is provided on the side of the clamping block 61 close to the fixed column 10. Cleaning cotton 66 is pasted in the semicircular notch. The cleaning cotton 66 is adapted to the fixed column 10. The side of the clamping block 61 away from the fixed column 10 is fixedly connected with a sliding rod 62. The sliding rod 62 is slidably connected to the inside of the sleeve rod 63. A cavity for the sliding rod 62 to slide is provided inside the sleeve rod 63. A spring 64 is fixedly connected between the inner wall of the sleeve rod 63 and the end of the sliding rod 62. A fixing plate 65 is fixedly connected to the outer side of the sleeve rod 63. The bottom end of the fixing plate 65 is fixedly connected to the upper end surface of the collection box 2.

[0038] After the fixing column 10 fixes the protective frame 3, the sliding rod 62 is released, and the sliding rod 62 moves toward the fixing column 10 under the action of the rebound force of the spring 64 until the cleaning cotton 66 is attached to the fixing column 10; when the liquid on the fixing column 10 needs to be cleaned, the screw 13 is turned so that the screw 13 drives the lifting plate 15 to move upward, and the protruding part of the lifting plate 15 is away from the recessed part of the limiting plate 14, so that the limiting plate 14 and the fixing column 10 can move as a whole, and the fixing column 10 is pushed back and forth so that the liquid on the surface of the fixing column 10 is wiped off by the cleaning cotton 66; after long-term use, the cleaning cotton 66 needs to be replaced, and the sliding rod 62 is slid in the direction of the spring 64, the spring 64 is compressed, and the sliding rod 62 drives the clamping block 61 and the cleaning cotton 66 away from the fixing column 10, and the cleaning cotton 66 is removed and replaced with the unused cleaning cotton 66 and pasted on the semicircular notch of the clamping block 61.

[0039] Working principle:

[0040] When the protective frame 3 needs to be fixed, the fixing column 10 is pushed toward the protective frame 3 so that one end of the fixing column 10 passes through the fixing hole 33; the screw rod 13 is rotated, and the screw rod 13 drives the lifting plate 15 to move downward until the protruding portion of the lifting plate 15 is docked with the concave portion of the limiting plate 14 to fix the limiting plate 14 and the fixing column 10 as a whole, thereby fixing the protective frame 3;

[0041] The water inlet pipe 102 supplies water to the annular pipe 101, and the water is sprayed from the nozzle to the inner wall of the reactor 1, so that the water flow washes down the solids remaining on the inner wall of the reactor 1, and the solids and chemicals remaining on the inner wall of the reactor 1 are discharged from the discharge pipe along the water flow and fall on the metal mesh 81. The remaining solids cannot pass through the metal mesh 81 and are retained on the metal mesh 81. The liquid flows into the protection frame 3 through the metal mesh 81, and the liquid in the protection frame 3 is discharged by opening the water outlet pipe 5;

[0042] When the liquid is discharged downward through the discharge pipe of the reactor 1, some of the liquid may splash onto the fixed column 10, and the liquid on the fixed column 10 needs to be cleaned: rotate the screw 13 so that the screw 13 drives the lifting plate 15 to move upward, and the protruding part of the lifting plate 15 is away from the recessed part of the limiting plate 14, so that the limiting plate 14 and the fixed column 10 can move as a whole, pushing the fixed column 10 back and forth, so that the liquid on the surface of the fixed column 10 is wiped off by the cleaning cotton 66.

[0043] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A salicylic nitrile kettle residue recovery device, characterized in that: include: A collection box (2), a reaction kettle (1) is fixedly arranged above the collection box (2), a mounting groove (21) is provided at the upper end of the collection box (2), a protection frame (3) is detachably installed in the mounting groove (21), a fixing plate (32) is symmetrically fixedly connected to the upper end of the protection frame (3), a fixing hole (33) is provided on the fixing plate (32), a first fixing cylinder (7) is symmetrically fixedly connected to the upper end of the collection box (2), a second fixing cylinder (9) is fixedly connected to the side of the two first fixing cylinders (7) close to each other, and the first fixing cylinder (7) A fixed column (10) is slidably arranged inside the second fixed cylinder (9), the fixed column (10) is made of stainless steel, the upper end of the fixed column (10) is fixedly connected to a limit plate (14), the upper end of the second fixed cylinder (9) is fixedly connected to a fixed seat (11), a lifting plate (15) is slidably arranged in a docking groove of the fixed seat (11), a screw (13) is threadedly connected to the fixed seat (11), and the end of the fixed seat (11) is rotatably connected to the lifting plate (15), and a drying mechanism (6) is arranged on both sides of the fixed column (10).

2. A salicylic nitrile still residue recovery device according to claim 1, characterized in that: The outside of the reaction kettle (1) is fixedly connected to a plurality of support rods (4) in an annular shape, the ends of the support rods (4) away from the reaction kettle (1) are fixedly connected to the upper end surface of the collecting box (2), the inside of the reaction kettle (1) and a position close to the upper end is fixedly connected to an annular tube (101), the bottom end of the annular tube (101) is installed with a plurality of nozzles, the outside of the reaction kettle (1) is connected to a water inlet pipe (102), one end of the water inlet pipe (102) is connected to the annular tube (101), and the bottom end of the reaction kettle (1) is connected to a discharge pipe.

3. A salicylic nitrile still residue recovery device according to claim 1, characterized in that: The shape of the protection frame (3) is adapted to the installation groove (21); the outer side of the collection box (2) is connected to a water outlet pipe (5); the water outlet pipe (5) is in communication with the protection frame (3); the upper end of the protection frame (3) is open; and the inner wall of the protection frame (3) is provided with two groups of symmetrically arranged slots (31).

4. A salicylic nitrile still residue recovery device according to claim 3, characterized in that: A filtering device (8) is installed inside the protection frame (3), and the filtering device (8) comprises a metal mesh (81). A return frame (82) is fixedly connected to the outside of the metal mesh (81), and two groups of symmetrically arranged clamping blocks (83) are fixedly connected to the outside of the return frame (82), and the clamping blocks (83) are adapted to the clamping slots (31). A pull plate (84) is symmetrically fixedly connected to the upper end of the return frame (82), and the pull plate (84) is in an "L" shape.

5. The salicylic nitrile still residue recovery device according to claim 1, characterized in that: The first fixing tube (7) and the second fixing tube (9) are provided with through holes for the fixing column (10) and the limiting plate (14) to be inserted.

6. A salicylic nitrile still residue recovery device according to claim 5, characterized in that: A limiting groove (91) is provided inside the second fixed tube (9), the limiting groove (91) is communicated with the through hole of the second fixed tube (9), a docking groove communicated with the limiting groove (91) is provided at the bottom end of the fixed seat (11), a screw rod (13) penetrates the side wall of the fixed seat (11) and extends into the docking groove of the fixed seat (11), and a protective plate (12) is fixedly connected to the sides of the two fixed seats (11) that are close to each other.

7. The salicylic nitrile still residue recovery device according to claim 1, characterized in that: A protrusion is fixedly provided at the bottom end of the lifting plate (15), and a recess is provided at the top end of the limiting plate (14).

8. The salicylic nitrile still residue recovery device according to claim 1, characterized in that: The two drying mechanisms (6) are symmetrically arranged based on the axis of the fixed column (10), and the drying mechanism (6) comprises a clamping block (61) and a sleeve rod (63). A sliding groove is symmetrically provided on the collection box (2), and the bottom end of the clamping block (61) is slidably connected in the sliding groove. A semicircular notch is provided on the side of the clamping block (61) close to the fixed column (10), and a cleaning cotton (66) is pasted in the semicircular notch. The cleaning cotton (66) is adapted to the fixed column (10). The clamping block (61) A sliding rod (62) is fixedly connected to the side away from the fixed column (10), and the sliding rod (62) is slidably connected to the inside of the sleeve rod (63). A cavity for sliding the sliding rod (62) is provided inside the sleeve rod (63). A spring (64) is fixedly connected between the inner wall of the sleeve rod (63) and the end of the sliding rod (62). A fixing plate (65) is fixedly connected to the outer side of the sleeve rod (63), and the bottom end of the fixing plate (65) is fixedly connected to the upper end surface of the collection box (2).

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