CN112223408B

CN112223408B - Fire retardant production process and equipment

Info

Publication number: CN112223408B
Application number: CN202010987753.1A
Authority: CN
Inventors: 周向东
Original assignee: Hunan Minxin Wood Based Panel Co ltd
Current assignee: Hunan Minxin New Materials Co ltd
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2022-02-18
Anticipated expiration: 2040-09-18
Also published as: CN112223408A

Abstract

The invention discloses a fire retardant production process and equipment, which belong to the technical field of fire retardant production, and comprise an alkylation reaction kettle, an esterification reaction kettle, a distillation pot, a condenser and a washing tank, and are characterized in that the alkylation reaction kettle is connected with the esterification reaction kettle, the esterification reaction kettle is connected with the distillation pot, the distillation pot is connected with the condenser, the condenser is connected with the washing tank, the washing tank is connected with a drying slicer, the drying slicer is connected with a secondary slicer, the drying slicer comprises a cabinet body, one end of a top cover of the cabinet body is provided with a feeding plate, the side wall of the other end of the cabinet body is provided with a blanking plate, a conveying mechanism is arranged in the cabinet body, the conveying chain plate is connected with the blanking plate, and the blanking plate is connected with the secondary slicer; the secondary slicing machine comprises a material containing box, a secondary slicing device arranged above the second main shaft is matched with the material containing box to slice materials for the second time, and a conveying belt is arranged below the second main shaft.

Description

Fire retardant production process and equipment

Technical Field

The invention relates to the technical field of flame retardant production, in particular to a flame retardant production process and equipment.

Background

The flame retardant, also called flame retardant, fire retardant or fire retardant, is an additive added into a high molecular material and capable of increasing the flame resistance of the material, retarding the combustion speed or stopping the combustion. In modern society, polymer materials are widely applied to production and life, and the protection and combustion-supporting measures of the materials are more and more important, so that the importance of the flame retardant is deeply recognized by people, and the reasonable treatment of the material flame retardant becomes one of important means for reducing fire.

Flame retardants are classified into additive flame retardants and reactive flame retardants according to the manner of processing and use. The additive flame retardant is prepared by mixing the flame retardant with polymer and then processing and molding, so that the plastic has flame retardance. Mainly including halogen flame retardants (organic chlorides and organic bromides), phosphorus flame retardants (red phosphorus, phosphate esters, halogenated phosphate esters, and the like), nitrogen flame retardants, organosilicon flame retardants, inorganic flame retardants, and the like.

The phosphorus flame retardant has the advantages of good flame retardant effect, easy mixing with various organic matters, stable performance, low price and the like, and is widely applied. In the existing production process of the phosphorus flame retardant, in order to remove water-soluble impurities in a product, water washing operation is required, but then slicing and packaging are carried out after drying is carried out only in a natural air drying mode, so that the drying efficiency is low, the drying of the product is not uniform, and the quality of a finished product is affected. The invention provides an optimized production process aiming at the phosphorus flame retardant for improving the production quality of products, and can reduce the operation steps and greatly improve the production efficiency by matching with equipment designed in a pertinence manner.

Disclosure of Invention

The invention aims to solve the problems and provides a flame retardant production process and equipment, and the technical scheme adopted by the invention is as follows: a fire retardant production device comprises an alkylation reaction kettle, an esterification reaction kettle, a distillation pot, a condenser and a washing pool, and is characterized in that the rear part of the alkylation reaction kettle is connected with the esterification reaction kettle, the rear part of the esterification reaction kettle is connected with the distillation pot, the rear part of the distillation pot is connected with the condenser, the rear part of the condenser is connected with the washing pool, the rear part of the washing pool is connected with a drying slicer, the rear part of the drying slicer is connected with a secondary slicer, the drying slicer comprises a cabinet body, one end of a top cover of the cabinet body is provided with a feeding plate, the side wall of the other end of the cabinet body is provided with a blanking plate, the feeding plate and the blanking plate are both provided with sealing doors, a conveying mechanism is arranged in the cabinet body, the conveying mechanism comprises a conveying chain plate, a plurality of hot air nozzles are arranged above the conveying chain plate and communicated with a hot air blower through a shunting pipeline, the hot air blower is arranged on the top cover of the cabinet body, a primary slicing device is arranged in the middle position of the conveying chain plate, the primary slicing device comprises a vertical slicing device and a transverse slicing device, a hot gas circulation pipeline assembly is arranged below the conveying chain plate, the conveying mechanism is driven by a first motor, a blanking plate is connected behind the conveying chain plate, and a secondary slicing machine is connected behind the blanking plate; the secondary slicing machine comprises a material containing box, the material containing box is used for receiving blanking of a blanking plate, the material containing box is connected to a second main shaft through a connecting plate in an annular array mode, the second main shaft is connected to an output shaft of a fourth motor, a secondary slicing device arranged above the second main shaft is matched with the material containing box to carry out secondary slicing on materials, a conveying belt is arranged below the second main shaft, and the conveying belt is driven by the second motor.

Furthermore, clearance grooves are formed in the conveying chain plate at intervals, the clearance grooves are located on one side of the surface of the conveying chain plate, and a baffle wall is arranged on the other side of the surface of the conveying chain plate, which is located beside the clearance grooves; the vertical slicing device of the primary slicing device is arranged at the clearance groove.

Further, vertical section device is including erecting the cutter, erects the cutter activity and sets up keeping away dead slot department, erects the cutter and installs on the fourth connecting rod, and the fourth connecting rod other end is connected on the second spacing ring, and the second spacing ring other end passes through first connecting rod to be connected on first spacing ring, and first spacing ring cover is established on spacing epaxially, the roll is provided with the gyro wheel in the second spacing ring, and the gyro wheel passes through the connecting piece to be connected on first main shaft, and first main shaft one end is connected on the output shaft of fourth motor, and the other end is connected in the bearing of bearing frame.

Furthermore, the first limiting ring and the second limiting ring are both in a strip-shaped plate shape, the middle part of the first limiting ring is provided with a groove structure, and the groove shape of the middle part is a middle rectangle with two semicircular ends; the connecting piece is of an L-shaped rod-shaped structure, one end of the connecting piece is connected into the small bearing on the roller, and the other end of the connecting piece is connected to the first main shaft; the quantity of vertical section device has a plurality of all to arrange the setting and keeping away empty groove department, and the first spacing ring of each vertical section device all overlaps and establish on spacing axle, and each gyro wheel all connects on first main shaft through the connecting piece.

Further, the transverse slicing device comprises a transverse cutter, the transverse cutter is positioned above the conveying chain plate and is highly lower than the top surface of the blocking wall, one end of the transverse cutter is connected with the first spring through a third connecting rod, the first spring is connected to the side wall of the cabinet body through a connecting block, the third connecting rod is arranged in a rolling mode in the rotating shaft and is stirred by the first main shaft to move forwards, the rotating shaft is arranged in a plurality of rows, and the rotating shaft is installed in the middle of the supporting rod.

Furthermore, a stop lever is arranged on the side wall of the third connecting rod, a shifting piece is arranged on the first main shaft, and the shifting piece shifts the stop lever to push the third connecting rod forwards when rotating.

Further, the hot gas circulation pipeline subassembly includes the circulation intake pipe, and the circulation intake pipe passes cabinet body top cap and its air inlet is located the internal top of cabinet, and the other end of circulation intake pipe communicates in the external dehumidifier of cabinet, and the export and the circulating outlet duct of dehumidifier are linked together, and the circulating outlet duct stretches into the cabinet internally and arranges and carry link joint below, a plurality of gas outlets have been seted up on the circulating outlet duct, and the interval of gas outlet dwindles in proper order from the import to the tail end direction of circulating outlet duct.

Further, the secondary section device includes cutter unit spare, and cutter unit spare installs in the mounting panel bottom, and the mounting panel upper end is connected on the piston rod that the cylinder is vertical decurrent, and the cylinder is connected on L shaped plate column structure's support piece's roof.

Further, the cutter assembly comprises a transverse blade and a vertical blade, and the transverse blade and the vertical blade are arranged in a staggered mode; the cutter component is movably sleeved with a push plate, and the upper end of the push plate is connected to the bottom surface of the mounting plate through a second spring

In addition, the invention also discloses a production process of the fire retardant production equipment, which comprises the following steps:

A. alkylation reaction: adding phenol, propylene gas and a catalyst into an alkyl reaction kettle to carry out alkylation reaction;

B. esterification reaction: putting the materials which are completely alkylated into an esterification reaction kettle, and adding a catalyst and phosphorus oxychloride to carry out esterification reaction;

C. and (3) distillation: feeding the materials after the esterification reaction into a distillation pot for distillation;

D. condensation: feeding the crude product material obtained by distillation into a condenser for condensation;

E. washing with water: sending the condensed finished product into a washing pool for washing;

F. primary drying: feeding the washed materials into a drying and slicing machine, and drying the materials at the front section of a conveying chain plate for one time;

G. primary slicing: the materials dried at the first time by the front section of the conveying chain plate are sequentially subjected to vertical slicing segmentation and transverse slicing by a vertical slicing device and a transverse slicing device of a first slicing device;

H. secondary drying: continuously drying the materials which are cut once through the rear section of the conveying chain plate for the second time, and discharging the materials through a discharging plate;

I. secondary slicing: the material discharged from the discharging plate enters a material containing box of a secondary slicing machine and is secondarily sliced by matching with a secondary slicing device;

J. the method comprises the following steps Packaging: and outputting the materials subjected to secondary slicing to a packaging working section by a conveying belt for packaging.

The invention has the beneficial effects that:

1. in order to improve the quality of the product and remove impurities contained in the material, the material obtained by distillation and condensation in the prior production technology is washed by water through a water washing tank so as to remove water-soluble impurities in the finished product or wash away other impurities, thereby effectively improving the quality of the finished product; meanwhile, in order to solve the problems of low drying efficiency, uneven drying and the like of the washed materials, the washed materials are firstly dried, sliced once again and dried twice, and finally are sent into a packaging workshop section for packaging after being sliced twice.

2. In order to match the process of drying for multiple times and slicing for multiple times, the invention provides a drying and slicing machine and a secondary slicing machine which are matched in a targeted manner, an integrated design concept is adopted, the middle transfer step is shortened or omitted as far as possible, the primary drying, the primary slicing and the secondary drying are carried out in a centralized manner, and the drying and slicing machine is adopted for one-time continuous operation. Wherein the internal anterior segment of carrying the link joint of section rack of drying is dried once, and the middle part of carrying the link joint is provided with a section device and carries out vertical cutting and transverse slicing with the material in proper order to continue carrying out the secondary at the rear portion of carrying the link joint and drying, thereby more be favorable to the inside drying of product, and reduced the transportation link in the middle of, accelerated the speed of production.

3. The vertical slicing device and the transverse slicing device of the primary slicing device are driven by only one motor, namely the fourth motor, so that the structure is compact, and the energy consumption can be effectively saved. Wherein vertical cutter of vertical section device installs on the fourth connecting rod, and the fourth connecting rod rear end has connected gradually second spacing ring, head rod and first spacing ring, and first spacing ring cover is established and is carried on spacingly on spacing epaxially, and the second spacing intra-annular rolls and is provided with the gyro wheel, and the gyro wheel passes through the connecting piece of L shape and links to each other with first main shaft, realizes following motion process: the first main shaft drives the roller to rotate, the roller drives the second limiting ring to perform circular arc motion, and the second limiting ring drives the fourth connecting rod to perform synchronous circular arc motion, so that the vertical cutter is driven to perform circular arc motion reciprocating up and down. And the first motor is a stepping motor (the other three motors in the invention are all stepping motors), and drives the conveying chain plates to run at intervals, so that the vertical cutters sequentially cut off the conveyed materials.

4. The transverse slicing device provided by the invention is fluctuated by the first main shaft, wherein when a shifting piece on the first main shaft rotates, a cylindrical stop lever on the side wall of the third connecting rod is shifted forwards, the rear end of the third connecting rod is connected to the first spring, the first spring is stretched when the third connecting rod moves forwards, when the third connecting rod moves to the forefront position, the shifting piece is separated from the stop lever, at the moment, the third connecting rod is pulled backwards by the first spring until the shifting piece rotates to be contacted with the stop lever again, so that the second wheel moves, and the transverse cutter is repeatedly driven to transversely slice materials.

5. The secondary slicing device can rapidly complete the final secondary slicing of the materials which are subjected to primary slicing and drying to obtain fine materials and discharge the fine materials timely and rapidly. The material containing box is matched with the cutter assembly to slice materials, the material containing box is driven by the second main shaft to rotate downwards after slicing is completed, the materials are conveyed to the next process by the conveying belt, continuous slicing and blanking operations are achieved, and slicing efficiency is high; and the activity is provided with the push pedal on the cutter unit spare, and push pedal upper portion is connected with the second spring, when the cutter unit spare was pushed into by the cylinder and is accomplished the section in the flourishing magazine, the push pedal was up pushed up by the material and is made the second spring obtain the compression, when the cutter unit spare rose, the second spring pushed down the push pedal for the complete stay of material is in flourishing magazine, can clear up remaining material on the blade of cutter unit spare simultaneously.

Drawings

Fig. 1 is a schematic view of the overall structure of the drying slicer of the present invention.

Fig. 2 is a schematic view of an internal structure of the drying slicer of the present invention.

Fig. 3 is a schematic layout view of a hot air nozzle of the drying slicer of the present invention.

Fig. 4 is a schematic top view of the internal structure of the drying slicer of the present invention.

Fig. 5 is a schematic structural view of a cross-sectioning device of a drying and slicing machine according to the present invention.

Fig. 6 is a schematic structural view of a vertical slicing apparatus of a drying and slicing machine according to the present invention.

Fig. 7 is a schematic structural view of a secondary slicer according to the present invention.

Fig. 8 is a schematic view of the mounting of the knife assembly of the secondary slicer of the present invention.

FIG. 9 is a schematic view of the mounting of the push plate of the secondary slicer of the present invention.

Fig. 10 is a schematic view of a cutter assembly of the secondary slicer of the present invention.

The text labels in the figures are represented as: 1. A dehumidifier; 2. circulating the air outlet pipe; 3. circulating an air inlet pipe; 4. a feeding plate; 5. a sealing door; 6. a cabinet body; 7. a diversion pipeline; 8. a hot air blower; 9. a blanking plate; 10. a first motor; 11. a first connecting rod; 12. a first limit ring; 13. a first main shaft; 14. a limiting shaft; 15. a second stop collar; 16. a vertical cutter; 17. a transverse cutter; 18. a third connecting rod; 19. a first spring; 20. a hot gas showerhead; 21. an empty avoiding groove; 22. conveying chain plates; 23. a retaining wall; 24. a fourth connecting rod; 25. a rotating shaft; 26. an air outlet; 27. a shifting sheet; 28. a stop lever; 29. a bearing seat; 30. connecting blocks; 31. a roller; 32. a connecting member; 33. an air inlet; 34. a second motor; 35. a conveyor belt; 36. a third motor; 37. a second main shaft; 38. a connecting plate; 39. a material containing box; 40. pushing the plate; 41. mounting a plate; 42. a cylinder; 43. a support member; 44. a cutter assembly; 4401. a transverse blade; 4402. a vertical blade; 45. a second spring; 46. a fourth motor; 47. a support rod.

Detailed Description

The invention is further illustrated by the following examples.

A fire retardant production device comprises an alkylation reaction kettle, an esterification reaction kettle, a distillation pot, a condenser and a washing pool, and is characterized in that the esterification reaction kettle is connected behind the alkylation reaction kettle, the distillation pot is connected behind the esterification reaction kettle, the condenser is connected behind the distillation pot, the washing pool is connected behind the condenser, a drying slicer is connected behind the washing pool, a secondary slicer is connected behind the drying slicer, the drying slicer comprises a cabinet body 6, a feeding plate 4 is arranged at one end of a top cover of the cabinet body 6, a blanking plate 9 is arranged on the side wall of the other end of the cabinet body 6, sealing doors 5 are arranged at the feeding plate 4 and the blanking plate 9, a conveying mechanism is arranged in the cabinet body 6 and comprises a conveying chain plate 22, a plurality of hot air nozzles 20 are arranged above the conveying chain plate 22, the hot air nozzles 20 are communicated with a hot air blower 8 through a shunt pipeline 7, the hot air blower 8 is arranged on the top cover of the cabinet body 6, a primary slicing device is arranged in the middle of the conveying chain plate 22 and comprises a vertical slicing device and a transverse slicing device, a hot gas circulation pipeline assembly is arranged below the conveying chain plate 22, the conveying mechanism is driven by a first motor 10, a blanking plate 9 is connected behind the conveying chain plate 22, and a secondary slicing machine is connected behind the blanking plate 9; the secondary slicing machine comprises a material containing box 39, the material containing box 39 is used for receiving blanking of the blanking plate 9, the material containing box 39 is connected to a second main shaft 37 through a connecting plate 38 in an annular array mode, the second main shaft 37 is connected to an output shaft of a third motor 36, a secondary slicing device arranged above the second main shaft 37 is matched with the material containing box 39 to slice materials for the second time, a conveying belt 35 is arranged below the second main shaft 37, and the conveying belt 35 is driven by a second motor 34.

Preferably, as shown in fig. 2 and fig. 4, clearance grooves 21 are formed in the conveying chain plate 22 at intervals, the clearance grooves 21 are located on one side of the surface of the conveying chain plate 22, and a blocking wall 23 is arranged on the other side of the surface of the conveying chain plate 22, which is located beside the clearance grooves 21; the vertical slicing device of the primary slicing device is arranged at the clearance groove 21.

Preferably, as shown in fig. 2, 3, 4, and 6, the vertical slicing apparatus includes a vertical cutter 16, the vertical cutter 16 is movably disposed at the clearance groove 21, the vertical cutter 16 is mounted on a fourth connecting rod 24, the other end of the fourth connecting rod 24 is connected to a second limiting ring 15, the other end of the second limiting ring 15 is connected to a first limiting ring 12 through a first connecting rod 11, the first limiting ring 12 is sleeved on a limiting shaft 14, a roller 31 is rotatably disposed in the second limiting ring 15, the roller 31 is connected to a first main shaft 13 through a connecting member 32, one end of the first main shaft 13 is connected to an output shaft of a fourth motor 46, and the other end of the first main shaft is connected to a bearing of a bearing seat 29.

Preferably, as shown in fig. 2, 3, 4 and 6, the first limiting ring 12 and the second limiting ring 15 are both strip-shaped plate-shaped structures with a middle slot, and the middle slot is shaped as a middle rectangle with two semicircular ends; the connecting piece 32 is an L-shaped rod-shaped structure, one end of the connecting piece is connected in the small bearing on the roller 31, and the other end of the connecting piece is connected on the first main shaft 13; the number of the vertical slicing devices is provided with a plurality of vertical slicing devices which are arranged at the clearance grooves 21, the first limiting rings 12 of the vertical slicing devices are sleeved on the limiting shafts 14, and the rollers 31 are connected to the first main shaft 13 through connecting pieces 32.

Preferably, as shown in fig. 2, 3, 4, and 5, the transverse slicing device includes a transverse cutter 17, the transverse cutter 17 is located above the conveying chain plate 22 and is lower than the top surface of the blocking wall 23, one end of the transverse cutter 17 is connected to a first spring 19 through a third connecting rod 18, the first spring 19 is connected to the side wall of the cabinet 6 through a connecting block 30, the third connecting rod 18 is arranged on a rotating shaft 25 in a rolling manner and is shifted by the first main shaft 13 to move forward, the rotating shaft 25 is arranged in a plurality of rows, and the rotating shaft 25 is installed in the middle of the supporting rod 47.

Preferably, as shown in fig. 5, a stop lever 28 is disposed on a side wall of the third connecting rod 18, a shifting piece 27 is disposed on the first main shaft 13, and the shifting piece 27 shifts the stop lever 28 to push the third connecting rod 18 forward when rotating.

Preferably, please refer to fig. 1, 2, and 3, the hot gas circulation pipeline assembly includes a circulation gas inlet pipe 3, the circulation gas inlet pipe 3 penetrates through a top cover of the cabinet 6, an air inlet 33 of the circulation gas inlet pipe 3 is located at the top of the cabinet 6, the other end of the circulation gas inlet pipe 3 is communicated with the dehumidifier 1 outside the cabinet 6, an outlet of the dehumidifier 1 is communicated with the circulation gas outlet pipe 2, the circulation gas outlet pipe 2 extends into the cabinet 6 and is arranged below the conveying chain plate 22, the circulation gas outlet pipe 2 is provided with a plurality of gas outlets 26, and the distance between the gas outlets 26 is sequentially reduced from the inlet of the circulation gas outlet pipe 2 to the tail end direction.

Preferably, as shown in fig. 7, 8 and 9, the secondary slicing apparatus includes a cutter assembly 44, the cutter assembly 44 is mounted at the bottom of the mounting plate 41, the upper end of the mounting plate 41 is connected to a piston rod of the cylinder 42 which is vertically downward, and the cylinder 42 is connected to a top plate of the support 43 of the L-shaped plate-shaped structure.

Preferably, as shown in fig. 10, the slicer knife group 44 includes a transverse blade 4401 and a vertical blade 4402, and the transverse blade 4401 and the vertical blade 4402 are arranged in a staggered manner; the cutter component 44 is movably sleeved with a push plate 40, and the upper end of the push plate 40 is connected to the bottom surface of the mounting plate 41 through a second spring 45

In addition, the invention also discloses a production process and equipment of the flame retardant, which comprise the following steps:

F. primary drying: feeding the washed materials into a drying and slicing machine, and drying the materials at the front section of the conveying chain plate 22 for the first time;

G. primary slicing: the materials dried at the first time by the front section of the conveying chain plate 22 are sequentially subjected to vertical slicing segmentation and transverse slicing by a vertical slicing device and a transverse slicing device of a first slicing device;

H. secondary drying: the materials which are cut into slices for the first time are continuously dried for the second time through the rear section of the conveying chain plate 22, and are discharged through the discharging plate 9;

I. secondary slicing: the material discharged from the blanking plate 9 enters a material containing box 39 of a secondary slicing machine and is secondarily sliced by matching with a secondary slicing device;

J. the method comprises the following steps Packaging: the materials after the secondary slicing are output to a packaging working section by a conveyer belt 35 for packaging.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The principles and embodiments of the present invention are explained herein, and the above description of the embodiments is only used to help understand the method and its core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. A fire retardant production device comprises an alkylation reaction kettle, an esterification reaction kettle, a distillation still, a condenser and a water washing pool, and is characterized in that the esterification reaction kettle is connected behind the alkylation reaction kettle, the distillation still is connected behind the esterification reaction kettle, the condenser is connected behind the distillation still, the water washing pool is connected behind the condenser, a drying slicer is connected behind the water washing pool, a secondary slicer is connected behind the drying slicer, the drying slicer comprises a cabinet body (6), a feeding plate (4) is arranged at one end of a top cover of the cabinet body (6), a blanking plate (9) is arranged on the side wall of the other end of the cabinet body (6), sealing doors (5) are arranged at the feeding plate (4) and the blanking plate (9), a conveying mechanism is arranged in the cabinet body (6), the conveying mechanism comprises a conveying chain plate (22), a plurality of hot air spray nozzles (20) are arranged above the conveying chain plate (22), and the hot air spray nozzles (20) are communicated with a hot air blower (8) through a shunt pipeline (7), the hot air blower (8) is arranged on a top cover of the cabinet body (6), a primary slicing device is arranged in the middle of the conveying chain plate (22) and comprises a vertical slicing device and a transverse slicing device, a hot air circulating pipeline assembly is arranged below the conveying chain plate (22), the conveying mechanism is driven by a first motor (10), a blanking plate (9) is connected behind the conveying chain plate (22), and a secondary slicing machine is connected behind the blanking plate (9); clearance grooves (21) are formed in the conveying chain plate (22) at intervals, the clearance grooves (21) are located on one side of the surface of the conveying chain plate (22), and a blocking wall (23) is arranged on the other side of the surface of the conveying chain plate (22) and located beside the clearance grooves (21); the vertical slicing device of the primary slicing device is arranged at the clearance groove (21); the secondary slicing machine comprises a material containing box (39), the material containing box (39) is connected to the discharging of a discharging plate (9) in a bearing mode, the material containing box (39) is connected to a second main shaft (37) through a connecting plate (38) in an annular array mode, the second main shaft (37) is connected to an output shaft of a third motor (36), a secondary slicing device arranged above the second main shaft (37) is matched with the material containing box (39) to slice materials for the second time, a conveying belt (35) is arranged below the second main shaft (37), and the conveying belt (35) is driven by a second motor (34).

2. The flame retardant production equipment according to claim 1, wherein the vertical slicing device comprises a vertical cutter (16), the vertical cutter (16) is movably arranged at the clearance groove (21), the vertical cutter (16) is arranged on a fourth connecting rod (24), the other end of the fourth connecting rod (24) is connected to a second limiting ring (15), the other end of the second limiting ring (15) is connected to a first limiting ring (12) through a first connecting rod (11), the first limiting ring (12) is sleeved on a limiting shaft (14), a roller (31) is arranged in the second limiting ring (15) in a rolling manner, the roller (31) is connected to a first main shaft (13) through a connecting piece (32), one end of the first main shaft (13) is connected to an output shaft of a fourth motor (46), and the other end of the first main shaft is connected to a bearing of a bearing seat (29).

3. The fire retardant production equipment according to claim 2, wherein the first limiting ring (12) and the second limiting ring (15) are both in a strip plate shape and have a middle slotted structure, and the middle slotted shape is a middle rectangle with two semicircular ends; the connecting piece (32) is of an L-shaped rod-shaped structure, one end of the connecting piece is connected into the small bearing on the roller (31), and the other end of the connecting piece is connected onto the first main shaft (13); the number of the vertical slicing devices is provided with a plurality of vertical slicing devices which are all arranged at the clearance grooves (21), the first limiting rings (12) of the vertical slicing devices are all sleeved on the limiting shafts (14), and the rollers (31) are all connected to the first main shaft (13) through connecting pieces (32).

4. The fire retardant production equipment of claim 3, wherein the transverse slicing device comprises a transverse cutter (17), the transverse cutter (17) is positioned above the conveying chain plate (22) and is lower than the top surface of the baffle wall (23), one end of the transverse cutter (17) is connected with a first spring (19) through a third connecting rod (18), the first spring (19) is connected to the side wall of the cabinet body (6) through a connecting block (30), the third connecting rod (18) is arranged on a rotating shaft (25) in a rolling manner and is shifted by the first main shaft (13) to move forwards, the rotating shaft (25) is arranged in a plurality of rows, and the rotating shaft (25) is arranged in the middle of the supporting rod (47).

5. The equipment for producing the flame retardant according to claim 4, wherein a stop lever (28) is arranged on the side wall of the third connecting rod (18), a shifting sheet (27) is arranged on the first main shaft (13), and the stop lever (28) is shifted to push the third connecting rod (18) forwards when the shifting sheet (27) rotates.

6. The fire retardant production equipment according to claim 1, wherein the hot gas circulation pipeline assembly comprises a circulation gas inlet pipe (3), the circulation gas inlet pipe (3) penetrates through the top cover of the cabinet body (6) and an air inlet (33) of the circulation gas inlet pipe is positioned at the top of the inside of the cabinet body (6), the other end of the circulation gas inlet pipe (3) is communicated with a dehumidifier (1) outside the cabinet body (6), an outlet of the dehumidifier (1) is communicated with a circulation gas outlet pipe (2), the circulation gas outlet pipe (2) extends into the cabinet body (6) and is arranged below the conveying chain plate (22), a plurality of gas outlets (26) are formed in the circulation gas outlet pipe (2), and the distance between the gas outlets (26) is sequentially reduced from the inlet of the circulation gas outlet pipe (2) to the tail end direction.

7. The fire retardant production equipment of claim 1, wherein the secondary slicing device comprises a cutter assembly (44), the cutter assembly (44) is installed at the bottom of a mounting plate (41), the upper end of the mounting plate (41) is connected to a piston rod vertically downward of a cylinder (42), and the cylinder (42) is connected to a top plate of a support (43) of the L-shaped plate-shaped structure.

8. The flame retardant production apparatus of claim 7, wherein the cutter assembly (44) comprises a transverse blade (4401) and a vertical blade (4402), the transverse blade (4401) and the vertical blade (4402) are arranged in a staggered manner; the cutter component (44) is movably sleeved with a push plate (40), and the upper end of the push plate (40) is connected to the bottom surface of the mounting plate (41) through a second spring (45).

9. A process for producing a flame retardant producing apparatus according to any one of claims 1 to 8, comprising the steps of:

F. primary drying: feeding the washed materials into a drying and slicing machine, and drying the materials at the front section of a conveying chain plate (22) for one time;

G. primary slicing: the materials dried at the front section of the conveying chain plate (22) are sequentially subjected to vertical slicing segmentation and transverse slicing through a vertical slicing device and a transverse slicing device of a primary slicing device;

H. secondary drying: the materials which are cut into slices for the first time are continuously dried for the second time through the rear section of the conveying chain plate (22) and discharged through the discharging plate (9);

I. secondary slicing: the material discharged from the discharging plate (9) enters a material containing box (39) of a secondary slicing machine and is secondarily sliced by matching with a secondary slicing device;

J. packaging: and outputting the materials subjected to secondary slicing to a packaging working section by a conveying belt (35) for packaging.