Kiln for sodium silicate production

Abstract

The utility model discloses a furnace for sodium silicate production, and relates to the technical field of sodium silicate production equipment, the inside of the furnace body of the furnace is rotatably connected with a brake shaft, the two sides of the shaft rod of the brake shaft are symmetrically provided with rotating frames, and a plurality of groups of hoisting boxes are hung between the two groups of rotating frames along the circumferential direction; a brake motor is installed on one side of the furnace body of the smelting furnace in the shaft rod direction of the brake shaft. According to the design, a combination of a smelting furnace and a furnace cover is used as a kiln body, a combination of a rotating frame and a hoisting box is used as a circulating material placing platform, sodium silicate is sequentially put into the hoisting box, and sodium silicate raw materials are heated and calcined in a circulating rotary conveying mode by utilizing rotary hanging of the rotating frame to the hoisting box; the single-time calcination amount is smaller, the calcination efficiency is higher, the heated and calcined sodium silicate can be taken out for use in time, a new sodium silicate raw material is put in for continuous heating and calcination work, and the cyclic control performance is better.

Description

Technical Field

[0001] The utility model relates to the field of sodium silicate production equipment, in particular to a kiln for sodium silicate production. Background Art

[0002] Sodium silicate has a wide range of applications in the fields of chemical industry, building materials, papermaking, detergents, etc. There are various preparation methods, which can be prepared by heat treatment of sodium carbonate and silicic acid through chemical reactions, or can be prepared by calcining silicon powder. Among them, calcining silicon fine powder to prepare sodium silicate is a new method, which has the advantages of being more common and flexible than traditional methods. When using the calcination method to calcine sodium silicate materials, a kiln equipment is usually used to calcine them at high temperature. As shown in a melting kiln for processing sodium silicate (publication number CN212806508U) disclosed by the Chinese Patent Network, such a device uses a driving mechanism as a power source to drive a stirring rod to move up and down, dynamically stir and heat the sodium silicate material in the furnace body, realizing continuous stirring of the sodium silicate raw material and uniform heating.

[0003] However, for the sodium silicate production kilns adopted in the above-mentioned disclosed patents and the existing market, there are still some deficiencies: the existing method of using a power mechanism to drive a stirring component to dynamically stir and heat the sodium silicate raw material in the kiln, its integrated stirring, heating and calcining requires a long time to completely heat and calcine the sodium silicate raw material. While the calcination takes a long time, the performance of cyclic feeding and using is poor, and it can only be taken for use after all heating and calcining. Therefore, those skilled in the art have provided a kiln for sodium silicate production to solve the problems raised in the above background art. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a kiln for sodium silicate production, which solves the problems that the existing sodium silicate kiln has a long calcination time for sodium silicate raw materials and inconvenient feeding as mentioned in the above background art.

[0005] To achieve the above purposes, the utility model is realized through the following technical solutions: a kiln for sodium silicate production, including a melting furnace and a furnace cover symmetrically connected to the upper port of the furnace body of the melting furnace;

[0006] A braking shaft is rotatably connected inside the furnace body of the melting furnace, and rotating frames are symmetrically arranged on both sides of the shaft rod of the braking shaft. A plurality of lifting boxes are hung between the two groups of rotating frames along their circumferences;

[0007] A braking motor is installed on one side of the furnace body of the melting furnace along the direction of the shaft rod of the braking shaft;

[0008] A flue gas diversion mechanism is installed on the other side of the furnace body of the melting furnace along the direction of the shaft rod of the braking shaft.

[0009] As a further technical solution of the utility model: the rotary frame includes a rotating shaft and a plurality of groups of support arms arranged circumferentially along it, and a hanging ring adapted to the hoisting box is provided at the top end of the arm rod of each group of support arms.

[0010] As a further technical solution of the utility model: the hoisting box includes a heating box body, hoisting handles are symmetrically connected above the box frame of the heating box body, and hooks for hanging with the hanging rings are symmetrically arranged at both ends of the box frame of the heating box body.

[0011] As a further technical solution of the utility model: a second support seat for fixing the braking motor is installed on one side of the furnace body of the furnace along the axial direction of the braking shaft.

[0012] As a further technical solution of the utility model: the flue gas diversion mechanism includes a first support seat installed on the other side of the furnace body of the furnace along the axial direction of the braking shaft, a blower is installed on one side of the support of the first support seat, the blower is rotatably connected to the braking shaft through a sealing shaft ring, and a hot air discharge pipe is installed at the ventilation port of the blower.

[0013] As a further technical solution of the utility model: the braking shaft is of a hollow rod structure, and a plurality of groups of exhaust holes are arranged circumferentially along it.

[0014] The utility model provides a kiln for sodium silicate production, which has the following beneficial effects compared with the prior art:

[0015] 1. For the sodium silicate production kiln of this design, based on the combination of the melting furnace and the furnace cover as the kiln body, and using the combination of the rotary frame and the hoisting box as the circulating feeding platform, by sequentially putting sodium silicate into the hoisting box and using the rotary frame to rotate and hang the hoisting box, in a circulating and rotating conveying manner, the sodium silicate raw material is heated and calcined. Its single calcination amount is less, the calcination efficiency is more efficient, and the sodium silicate after heating and calcination can be taken out and used in time, and new sodium silicate raw material can be put in for continuous heating and calcination work. Its circulating control performance is better, and it is convenient to carry out rapid heating and calcination of sodium silicate in a continuous and uninterrupted manner and take out the material for use in time.

[0016] 2. When the sodium silicate production kiln of this design is heating and calcining, based on the hot air suction of the flue gas diversion mechanism, the hot air flue gas generated by heating in the kiln is extracted and used as a heating source for recycling, realizing waste heat recovery and saving energy loss. Description of the Drawings

[0017] Figure 1 It is a structural schematic diagram of a kiln for sodium silicate production;

[0018] Figure 2 It is a partial cross-sectional view of a kiln for sodium silicate production;

[0019] Figure 3 Schematic diagram of the structure of a rotary rack in a kiln for producing sodium silicate;

[0020] Figure 4 Schematic diagram of the structure of a lifting box in a kiln for producing sodium silicate;

[0021] Figure 5 Schematic diagram of the structure of a flue gas diversion mechanism in a kiln for producing sodium silicate.

[0022] In the figure: 1, melting furnace; 2, furnace cover; 3, first support seat; 4, fan; 5, hot air discharge pipe; 6, second support seat; 7, braking motor; 8, braking shaft; 9, rotary rack; 91, rotary shaft; 92, support arm; 10, lifting box; 101, heating box body; 102, lifting handle; 103, hook; 11, hanging ring; 12, exhaust hole; 13, sealing shaft ring. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figures 1-5 , the present invention provides a technical solution for a kiln for producing sodium silicate: A kiln for producing sodium silicate includes a melting furnace 1 and a furnace cover 2 symmetrically connected to the upper port of the furnace body of the melting furnace 1. The braking shaft 8 is rotatably connected inside the furnace body of the melting furnace 1, and rotary racks 9 are symmetrically arranged on both sides of the shaft rod of the braking shaft 8. The rotary rack 9 includes a rotary shaft 91 and a plurality of groups of support arms 92 arranged circumferentially along it. The top of the arm rod of each group of support arms 92 is provided with a hanging ring 11 adapted to the lifting box 10. By using the rotation of the rotary rack 9, the lifting boxes 10 are hung one by one on the hanging rings 11 of the rotary rack 9 to perform dynamic cyclic heating and calcination work on the sodium silicate raw materials in the lifting boxes 10. And because the lifting box 10 is in a hanging state with the rotary rack 9, during the rotation of the rotary rack 9, the lifting box 10 always maintains a vertically hanging state under the action of gravity, and the situation of the sodium silicate raw materials spilling will not occur. Then, when the sodium silicate raw materials in the lifting box 10 are heated and calcined, the furnace cover 2 can be opened to lift out the lifting boxes 10 one by one and put new lifting boxes 10 into them to perform cyclic and uninterrupted heating and calcination work on the sodium silicate raw materials inside.

[0025] There are multiple groups of hoisting boxes 10 hung along the circumferential direction between two groups of rotating frames 9. The hoisting box 10 includes a heating box body 101. Above the box frame of the heating box body 101, hoisting handles 102 are symmetrically connected. And at both ends of the box frame of the heating box body 101, hooks 103 for hanging with the hanging rings 11 are symmetrically arranged. By setting the hoisting handles 102 on the hoisting box 10, it is convenient for the staff to use a crane device to lift and place the hoisting box 10 into the furnace 1 to carry out the work of lifting, heating and calcining the sodium silicate raw material. Synchronously, by using the connection between the hooks 103 and the hanging rings 11, the hoisting box 10 is successively hung on the rotating frame 9 to carry out the rotary heating and calcining work.

[0026] On one side of the furnace body of the furnace 1, a braking motor 7 is installed along the axial direction of the brake shaft 8. On one side of the furnace body of the furnace 1, a second support seat 6 for fixing the braking motor 7 is installed along the axial direction of the brake shaft 8. By controlling the braking motor 7 as the power source, the brake shaft 8 is driven to rotate, and then the rotating frame 9 is driven to rotate, so that the hanging rings 11 on the rotating frame 9 are successively rotated to the position of the furnace cover 2, so as to facilitate the staff to successively hang the hoisting boxes 10 loaded with sodium silicate raw materials on the rotating frame 9 to carry out the rotary heating and calcining work.

[0027] On the other side of the furnace body of the furnace 1, a flue gas diversion mechanism is installed along the axial direction of the brake shaft 8. The flue gas diversion mechanism includes a first support seat 3 installed on the other side of the furnace body of the furnace 1 along the axial direction of the brake shaft 8. On one side of the support of the first support seat 3, a fan 4 is installed. The fan 4 is rotatably connected to the brake shaft 8 through a sealing shaft ring 13. And a hot air discharge pipe 5 is installed at the ventilation port of the fan 4. The brake shaft 8 is of a hollow rod structure, and multiple groups of exhaust holes 12 are arranged along its circumferential direction. By controlling the fan 4 to work, using the conduction combination of the exhaust holes 12 on the brake shaft 8 and the sealing shaft ring 13, the flue gas generated by heating in the furnace 1 is sucked, and the flue gas with high heat is cyclically extracted and discharged through the hot air discharge pipe 5, and is transported to the corresponding equipment as a heat source to provide heat for the corresponding equipment, improving the heat recovery and utilization of the kiln and saving energy loss.

[0028] The working principle of the present utility model is as follows: When using a kiln as a heating and calcining device for sodium silicate, first, the sodium silicate raw materials are laid flat in the lifting box 10 in sequence. Then, the furnace cover 2 is opened, and at the same time, the braking motor 7 is controlled as the power source to drive the braking shaft 8 to rotate, and then drive the rotating frame 9 to rotate. The hanging rings 11 on the rotating frame 9 are rotated to the position of the furnace cover 2 in sequence, and the lifting box 10 loaded with sodium silicate raw materials is hung on the rotating frame 9 in sequence to carry out the cyclic dynamic heating and calcining work on the sodium silicate raw materials. Since the lifting box 10 and the rotating frame 9 are in a buckled state under the hanging combination of the hanging ring 11 and the hook 103, during the rotation of the rotating frame 9, the lifting box 10 always maintains a vertically hanging state under the action of gravity, and will not cause the sodium silicate raw materials to spill. Then, when the sodium silicate raw materials in the lifting box 10 are heated and calcined, the furnace cover 2 can be opened to lift out the lifting box 10 one by one, and at the same time, a new lifting box 10 is put in to carry out the cyclic and uninterrupted heating and calcining work on the sodium silicate raw materials inside;

[0029] And during the heating and calcining, the fan 4 is controlled to work. By using the conduction combination of the exhaust holes 12 on the braking shaft 8 and the sealing shaft ring 13, the flue gas generated by heating in the melting furnace 1 is sucked, and the flue gas with high heat is cyclically extracted and discharged through the hot air discharge pipe 5 for diversion, and then transported to the corresponding equipment as a heat source to provide heat for the corresponding equipment, saving energy loss and improving the recovery and utilization of heat energy.

[0030] The above is only the preferred implementation manner of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model. The structures, devices, and operation methods not specifically described and explained in the present utility model, unless otherwise specified and limited, are implemented according to the conventional means in this field.

Claims

1. A kiln for producing sodium silicate, characterized in that: It comprises a furnace (1) and a furnace cover (2) symmetrically connected to an upper port of a furnace body of the furnace (1); A brake shaft (8) is rotatably connected inside the furnace body of the melting furnace (1), and rotating frames (9) are symmetrically arranged on both sides of the shaft of the brake shaft (8), and multiple groups of hanging boxes (10) are arranged and hung between two groups of rotating frames (9) along their circumferential direction; A brake motor (7) is installed on one side of the furnace body of the melting furnace (1) along the shaft direction of the brake shaft (8); A smoke guide mechanism is installed on the other side of the furnace body of the furnace (1) along the shaft direction of the brake shaft (8).

2. A kiln for sodium silicate production according to claim 1, characterized in that: The rotating frame (9) comprises a rotating shaft (91) and a plurality of groups of support arms (92) arranged along the circumference thereof, and a hanging ring (11) matching the hanging box (10) is provided at the top end of the arm rod of each group of support arms (92).

3. A kiln for sodium silicate production according to claim 2, characterized in that: The hanging box (10) comprises a heating box body (101), a hanging handle (102) is symmetrically connected to the top of the box frame of the heating box body (101), and hooks (103) connected to the hanging ring (11) are symmetrically arranged at both ends of the box frame of the heating box body (101).

4. A kiln for producing sodium silicate according to claim 1, characterized in that: A second support seat (6) for fixing a brake motor (7) is installed on one side of the furnace body of the melting furnace (1) along the shaft direction of the brake shaft (8).

5. A kiln for producing sodium silicate according to claim 1, characterized in that: The smoke guide mechanism comprises a first support seat (3) installed on the other side of the furnace body of the furnace (1) along the shaft direction of the brake shaft (8), a fan (4) is installed on one side of the support of the first support seat (3), the fan (4) and the brake shaft (8) are rotatably connected via a sealing shaft ring (13), and a hot air exhaust pipe (5) is installed at the ventilation port of the fan (4).

6. A kiln for producing sodium silicate according to claim 5, characterized in that: The brake shaft (8) is a hollow rod structure, and the brake shaft (8) is provided with a plurality of groups of exhaust holes (12) arranged along its circumference.

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