Flame retardant reaction device

Abstract

The utility model discloses a flame retardant reaction device which comprises a reaction kettle and two hoppers arranged at the top of the reaction kettle, a material distributing block is arranged at the lower end of each hopper, a rotating shaft is rotatably installed in each material distributing block, the top of each material distributing block is communicated with the corresponding rotating shaft through a discharge port, a material storage groove is formed in the rotating shaft in the axial direction, and the material storage grooves are communicated with the discharge ports. The size of the storage tank is adjustable; when the material storage groove of the rotating shaft rotates to an upward position, the material storage groove is communicated with a discharge port of the material distribution block, materials in the hopper flow into the material storage groove, and when the material storage groove of the rotating shaft rotates to a downward position, the materials flow into the reaction kettle from the material storage groove; a feeding pipe is further arranged on the side wall of the reaction kettle, and an alcohol solution with the concentration of% is conveyed from the feeding pipe. According to the utility model, the proportion of added sodium hydrofluoric acid and sodium fluoride can be automatically and accurately controlled, the manpower is saved, the automation degree is high, and the mixing and reaction speed is greatly improved.

Description

Technical Field

[0001] This utility model relates to a flame retardant reaction device, belonging to the field of flame retardant reaction technology. Background Technology

[0002] Wood is widely used in construction, transportation, furniture, and interior decoration, but its flammability poses a fire hazard, causing casualties and property damage. Treating wood with appropriate flame retardants is crucial for expanding the applications of wood, protecting people's property, and ensuring stable national economic growth. Wood flame retardants are chemical agents that improve or enhance the fire resistance of wood. The widespread use of wood flame retardants in wood and wood products significantly reduces the risk of fire.

[0003] In existing technologies, a wood flame retardant can be prepared by uniformly mixing sodium hydrofluoric acid and sodium fluoride in a certain proportion and then adding an 85% alcohol solution at 50-80℃. This flame retardant can be directly sprayed onto the surface of wood products to form a flame-retardant protective film, which neither affects the aesthetics of the wood products nor compromises their flame-retardant effect. However, in the preparation of this flame retardant, the proportions of each component need to be precisely controlled, especially the ratio of sodium hydrofluoric acid and sodium fluoride, which requires precise control to achieve a specific concentration of the mixture. Existing technologies are not convenient for automatically controlling the amount of each component added during production, requiring manual preparation, resulting in low production efficiency.

[0004] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0005] This invention addresses the shortcomings of the prior art by providing a flame retardant reaction device that can automatically and precisely control the proportion of added sodium hydrofluoric acid and sodium fluoride, saving manpower, achieving a high degree of automation, and greatly improving the mixing and reaction rate.

[0006] To solve the above technical problems, the present invention adopts the following technical solution:

[0007] A flame retardant reaction device includes a reaction vessel, comprising two hoppers disposed on the top of the reaction vessel, each hopper having a distribution block at its lower end, a rotating shaft rotatably mounted inside the distribution block, a small portion of the rotating shaft protruding beyond the distribution block;

[0008] The top of the material distribution block is connected to the rotating shaft through the discharge port. A storage trough is provided on the rotating shaft along its axial direction, and the size of the storage trough is adjustable.

[0009] When the storage tank of the rotating shaft is rotated to the upward position, the storage tank is connected to the discharge port of the material distribution block, and the material in the hopper flows into the storage tank. When the storage tank of the rotating shaft is rotated to the downward position, the material flows from the storage tank into the reactor.

[0010] The reactor is also equipped with a feed pipe on its side wall and a water inlet pipe at the top. A flow control valve is installed on the feed pipe section to deliver an alcohol solution with a concentration of %.

[0011] Furthermore, the storage trough is relatively long and extends axially beyond the material distribution block. An adjustment block is movably provided inside the storage trough. The rotating shaft is provided with a threaded hole that communicates with the storage trough. A locking screw is provided inside the threaded hole to lock the material distribution block.

[0012] Furthermore, one end of the rotating shaft extends beyond the reactor and is equipped with a passive helical gear, which meshes with and drives an active helical gear, which is driven by a first drive motor.

[0013] Furthermore, the outer wall of the reactor is provided with a jacket, and warm water flows through the jacket.

[0014] Furthermore, a hollow stirring shaft is rotatably mounted at the center of the reactor, and a hollow stirring rod is vertically mounted on the stirring shaft. The stirring rod is provided with a discharge hole, and the feed pipe is connected to the inner cavity of the stirring shaft.

[0015] Furthermore, a temporary storage box is provided at the upper end of the stirring spindle, the top end of the stirring spindle is rotatably installed in the temporary storage box, the part of the stirring spindle located in the temporary storage box is provided with a second liquid inlet, the side of the temporary storage box is provided with a first liquid inlet, the feed pipe is connected to the first liquid inlet, and the stirring spindle is driven by a second drive motor.

[0016] Furthermore, the bottom of the reactor is provided with a discharge pipe, which extends into the bottom of the reactor to a certain height and is closed at the top. A discharge port is provided in the middle of the side wall of the discharge pipe. A sleeve is fitted on the upper end of the discharge pipe, and the inner wall of the sleeve is in close contact with the outer wall of the discharge pipe. A cylinder is also provided at the bottom of the reactor. The cylinder drives the sleeve to move up and down. When the cylinder drives the sleeve to move up, the solution in the reactor is discharged from the discharge port.

[0017] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages:

[0018] 1. A small portion of the rotating shaft protrudes beyond the material distribution block. A storage trough is provided on the rotating shaft along its axial direction. The size of the storage trough is adjustable. When the storage trough of the rotating shaft is rotated to the upward position, the storage trough is connected to the discharge port of the material distribution block, and the material in the hopper flows into the storage trough. When the storage trough of the rotating shaft is rotated to the downward position, the material flows from the storage trough into the reactor. Sodium hydrofluoric acid is stored in one hopper, and sodium fluoride is stored in the other hopper. The size of the storage trough is adjusted by an adjusting block to control the mixing ratio of the two.

[0019] 2. The alcohol solution flows into the stirring shaft from the feed pipe, flows through the cavity of the stirring shaft to the cavity of the stirring rod, and is discharged from its discharge hole, so that the stirring rod stirs and discharges at the same time, greatly improving the mixing reaction efficiency.

[0020] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a structural diagram of the hopper, material distribution block, and rotating shaft;

[0023] Figure 3 This is a structural diagram of the hopper, material distribution blocks, and rotating shaft from another angle.

[0024] In the picture,

[0025] 1-Reaction vessel, 2-Jacket, 3-Hopper, 4-Discharge port, 5-Divider block, 6-Rotating shaft, 7-Locking screw, 8-Storage tank, 9-Adjusting block, 10-Passive helical gear, 11-Active helical gear, 12-Water inlet pipe, 13-Temporary storage box, 1301-First liquid inlet, 14-Stirring shaft, 1401-Second liquid inlet, 15-Feed pipe, 16-Flow control valve, 17-Discharge pipe, 1701-Discharge port, 18-Sleeve, 19-Cylinder. Detailed Implementation

[0026] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods of the present invention are now described with reference to the accompanying drawings.

[0027] like Figure 1-3 As shown, this utility model provides a flame retardant reaction device, including a reaction vessel 1, including two hoppers 3 disposed on the top of the reaction vessel 1, each hopper 3 having a distribution block 5 at its lower end, and a rotating shaft 6 rotatably mounted inside the distribution block 5, with a small portion of the rotating shaft 6 protruding beyond the distribution block 5.

[0028] The top of the material distribution block 5 is connected to the rotating shaft 6 through the discharge port 4. The rotating shaft 6 is provided with a storage trough 8 along its axial direction. The size of the storage trough 8 is adjustable.

[0029] When the storage tank 8 of the rotating shaft 6 is rotated to the upward position, the storage tank 8 is connected to the discharge port 4 of the material distribution block 5, and the material in the hopper 3 flows into the storage tank 8. When the storage tank 8 of the rotating shaft 6 is rotated to the downward position, the material flows from the storage tank 8 into the reactor 1.

[0030] The side wall of the reactor 1 is also provided with a feed pipe 15, and the top of the reactor 1 is provided with a water inlet pipe 12. A flow control valve 16 is provided on the section of the feed pipe 15 to deliver an 85% alcohol solution.

[0031] The storage tank 8 is relatively long and extends axially beyond the distribution block 5. An adjusting block 9 is movably installed within the storage tank 8. The rotating shaft 6 has a threaded hole communicating with the storage tank 8, and a locking screw 7 is installed in the threaded hole to lock the distribution block 5. Moving the adjusting block 9 within the storage tank 8 adjusts its size. Sodium hydrofluoric acid is stored in one hopper 3, and sodium fluoride is stored in the other hopper 3. Adjusting the size of the storage tank 8 by using the adjusting block 9 controls the ratio of the two solutions.

[0032] One end of the rotating shaft 6 extends beyond the reactor 1 and is equipped with a passive helical gear 10. The passive helical gear 10 meshes with the active helical gear 11 for transmission. The active helical gear 11 is driven by a first drive motor.

[0033] The outer wall of the reactor 1 is provided with a jacket 2, and warm water flows through the jacket 2 to heat the reactor 1.

[0034] A hollow stirring shaft 14 is rotatably mounted in the middle of the reactor 1. A hollow stirring rod is vertically mounted on the stirring shaft 14. The stirring rod is provided with a discharge hole. The feed pipe 15 is connected to the inner cavity of the stirring shaft 14.

[0035] The upper end of the stirring spindle 14 is provided with a temporary storage box 13. The top end of the stirring spindle 14 is rotatably installed in the temporary storage box 13. The part of the stirring spindle 14 located in the temporary storage box 13 is provided with a second liquid inlet 1401. The side of the temporary storage box 13 is provided with a first liquid inlet 1301. The feed pipe 15 is connected to the first liquid inlet 1301. The stirring spindle 14 is driven by a second drive motor.

[0036] The bottom of the reactor 1 is provided with a discharge pipe 17, which extends into the bottom of the reactor 1 to a certain height and is closed at the top. A discharge port 1701 is provided in the middle of the side wall of the discharge pipe 17. A sleeve 18 is fitted on the upper end of the discharge pipe 17, and the inner wall of the sleeve 18 is in close contact with the outer wall of the discharge pipe 17. A cylinder 19 is also provided at the bottom of the reactor 1. The cylinder 19 drives the sleeve 18 to move up and down. When the cylinder 19 drives the sleeve 18 to move up, the solution in the reactor 1 is discharged from the discharge port 1701.

[0037] The specific working principle of this utility model:

[0038] The reactor 1 is equipped with a hopper 3 at the top, and each hopper 3 has a distribution block 5 at its lower end. A rotating shaft 6 is rotatably installed inside the distribution block 5, and a small part of the rotating shaft 6 protrudes beyond the distribution block 5. A storage tank 8 is opened along the axial direction of the rotating shaft 6. The size of the storage tank 8 is adjustable. When the storage tank 8 of the rotating shaft 6 is rotated to the upward position, the storage tank 8 is connected to the discharge port 4 of the distribution block 5, and the material in the hopper 3 flows into the storage tank 8. When the storage tank 8 of the rotating shaft 6 is rotated to the downward position, the material flows from the storage tank 8 into the reactor 1. Sodium hydrofluoric acid is stored in one hopper 3 and sodium fluoride is stored in the other hopper 3. The size of the storage tank 8 is adjusted by the adjusting block 9, thereby controlling the mixing ratio of the two.

[0039] The stirring shaft 14 is driven by a second drive motor. The alcohol solution flows into the stirring shaft 14 from the feed pipe 15, flows through the cavity of the stirring shaft 14 to the cavity of the stirring rod and is discharged from its discharge hole, so that the stirring rod stirs and discharges at the same time, greatly improving the mixing reaction efficiency.

[0040] The bottom of the reactor 1 is also equipped with a cylinder 19, which drives the sleeve 18 to move up and down. When the cylinder 19 drives the sleeve 18 to move up, the solution in the reactor 1 is discharged from the discharge port 1701, realizing automatic discharge.

[0041] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.

Claims

1. A flame retardant reaction apparatus, characterized in that: It includes a reactor (1) and two hoppers (3) set on the top of the reactor (1). Each hopper (3) has a distribution block (5) at its lower end. A rotating shaft (6) is rotatably installed inside the distribution block (5). A small part of the rotating shaft (6) protrudes beyond the distribution block (5). The top of the material distribution block (5) is connected to the rotating shaft (6) through the discharge port (4). A storage trough (8) is provided on the rotating shaft (6) along its axial direction. The size of the storage trough (8) is adjustable. When the storage tank (8) of the rotating shaft (6) is rotated to the upward position, the storage tank (8) is connected to the discharge port (4) of the material distribution block (5), and the material in the hopper (3) flows into the storage tank (8). When the storage tank (8) of the rotating shaft (6) is rotated to the downward position, the material flows from the storage tank (8) into the reactor (1). The side wall of the reactor (1) is also provided with a feed pipe (15), the top of the reactor (1) is provided with a water inlet pipe (12), and the feed pipe (15) is provided with a flow control valve (16) to deliver an alcohol solution with a concentration of (85)%.

2. The flame retardant reaction device as described in claim 1, characterized in that: The storage tank (8) is relatively long and extends axially beyond the material distribution block (5). An adjustment block (9) is movably provided inside the storage tank (8). The rotating shaft (6) is provided with a threaded hole that communicates with the storage tank (8). A locking screw (7) is provided in the threaded hole to lock the material distribution block (5).

3. The flame retardant reaction apparatus as described in claim 1, characterized in that: One end of the rotating shaft (6) extends beyond the reactor (1) and is equipped with a passive helical gear (10). The passive helical gear (10) meshes with the active helical gear (11) for transmission. The active helical gear (11) is driven by a first drive motor.

4. The flame retardant reaction apparatus as described in claim 1, characterized in that: The outer wall of the reactor (1) is provided with a jacket (2), and warm water flows inside the jacket (2).

5. The flame retardant reaction apparatus as described in claim 1, characterized in that: A hollow stirring shaft (14) is rotatably installed in the middle position of the reactor (1). A hollow stirring rod is vertically installed on the stirring shaft (14). The stirring rod is provided with a discharge hole. The feed pipe (15) is connected to the inner cavity of the stirring shaft (14).

6. The flame retardant reaction apparatus as described in claim 5, characterized in that: The upper end of the stirring spindle (14) is provided with a temporary storage box (13). The top end of the stirring spindle (14) is rotatably installed in the temporary storage box (13). The part of the stirring spindle (14) located in the temporary storage box (13) is provided with a second liquid inlet (1401). The side of the temporary storage box (13) is provided with a first liquid inlet (1301). The feed pipe (15) is connected to the first liquid inlet (1301). The stirring spindle (14) is driven by a second drive motor.

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