Sodium silicate production equipment capable of efficiently utilizing heat

Abstract

The utility model discloses efficient heat utilization sodium silicate production equipment which comprises a burner, a smelting furnace fixedly arranged at the top end of the burner, a hopper fixedly arranged at the top end of the smelting furnace, a controllable flow valve fixedly arranged at the bottom end of the hopper, and a heat exchanger arranged on the outer side of the smelting furnace in a surrounding mode and composed of a plurality of two-way pipelines. A high-temperature-resistant pipe is fixedly arranged on one side of the smelting furnace, a reaction kettle is fixedly arranged on the other side of the high-temperature-resistant pipe, a cooling device is fixedly arranged on the outer side of the reaction kettle, and the cooling device is communicated with a heat exchanger; according to the utility model, the heat exchanger is connected to the flue gas outlet of the smelting furnace, so that a large amount of waste heat in the flue gas can be recovered and used for heating production water or media required by other process links, the energy utilization rate is obviously improved, and the production cost is reduced; the cooling effect is achieved on the processing of the reaction kettle in the inlet process, and the heat utilization efficiency of the whole device is improved in the subsequent process of circulating to the interior of the reaction kettle through the heat exchanger.

Description

Technical Field

[0001] This utility model relates to the technical field of sodium silicate production equipment, and in particular to a sodium silicate production equipment with high-efficiency heat utilization. Background Technology

[0002] Sodium silicate production processes can be divided into two types: dry and wet. The traditional dry process involves first producing solid sodium silicate, which is then dissolved and converted into liquid sodium silicate of the required specifications. The raw materials for producing sodium silicate are quartz sand and soda ash. The two are mixed in a certain proportion and sent to a horseshoe-flame kiln, where they are calcined and melted at high temperature. After water quenching and cooling, solid sodium silicate is obtained.

[0003] Existing sodium silicate production equipment generates a large amount of heat waste during the production process, making it impossible to effectively increase heat utilization to save energy, and at the same time, it is impossible to intuitively observe the production effect of sodium silicate.

[0004] Therefore, we propose a high-efficiency heat utilization equipment for sodium silicate production. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a highly efficient heat-utilizing sodium silicate production equipment.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A high-efficiency heat utilization sodium silicate production equipment includes a burner, a furnace fixedly mounted on the top of the burner, a hopper fixedly mounted on the top of the furnace, a controllable flow valve fixedly mounted on the bottom of the hopper, a heat exchanger composed of several double-pass pipes surrounding the outside of the furnace, a high-temperature resistant pipe fixedly mounted on one side of the furnace, a reaction vessel fixedly mounted on the other side of the high-temperature resistant pipe, and a cooling device fixedly mounted on the outside of the reaction vessel, the cooling device being connected to the heat exchanger.

[0008] As a further improvement of this utility model: a fuel inlet is provided on one side of the burner, the top of the burner penetrates through the bottom of the furnace and is fixed thereon, the furnace should have certain high temperature resistance characteristics, and refractory bricks are fixedly provided on the inner side of the furnace.

[0009] As a further improvement of this utility model: a flue gas outlet is fixedly provided on one side of the furnace, and the flue gas outlet is connected to a heat exchanger.

[0010] As a further embodiment of this utility model: the cooling device should have the ability to connect water inlet and air inlet, the cooling device is connected to the inner pipe of the heat exchanger, the outer pipe of the heat exchanger is connected to the flue gas outlet, the cooling device heats the water or air inlet through the heat exchanger to achieve circulation, a circulation pipe is opened on one side of the heat exchanger, and the circulation pipe is separately connected to the reaction vessel.

[0011] As a further embodiment of this utility model: a drive motor is fixedly installed at the top of the inner wall of the reaction vessel, and a stirring rod is fixedly installed at the bottom of the drive motor. The stirring rod is located on the central axis inside the reaction vessel, and the drive motor drives the stirring rod to rotate.

[0012] As a further improvement of this utility model: the reaction vessel should have certain acid and alkali resistance characteristics, and the reaction vessel is connected to the furnace through a high-temperature resistant pipe.

[0013] As a further embodiment of this utility model: a discharge port is fixedly provided on one side of the bottom end of the reactor, a metering valve for discharging is provided on the inner wall of the discharge port, and an observation glass for observation is provided on the surface of the reactor.

[0014] Compared with the prior art, this utility model provides a highly efficient heat utilization equipment for sodium silicate production, which has the following beneficial effects:

[0015] This invention, by connecting a heat exchanger to the flue gas outlet of a furnace, can recover a large amount of waste heat from the flue gas for preheating raw materials, heating production water, or other media required in process steps, significantly improving energy utilization and reducing production costs. Furthermore, the cooling device, as the inlet of the circulation system, plays a cooling role in the processing of the reactor during the inlet process, and the subsequent circulation back into the reactor through the heat exchanger improves the overall thermal efficiency of the device.

[0016] This invention equips the reaction vessel with a cooling device, which allows for flexible adjustment of the reaction temperature according to the production process requirements, ensuring the stability of the sodium silicate production process and the consistency of product quality. Furthermore, the device allows for direct observation of the dissolution effect of the sodium silicate entering the reaction vessel through a glass tube, avoiding problems such as incomplete dissolution or decreased product performance caused by excessively high or low temperatures.

[0017] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a high-efficiency heat-utilizing sodium silicate production equipment proposed in this utility model.

[0019] Figure 2This is a detailed structural diagram of the furnace cross-section of a high-efficiency heat utilization sodium silicate production equipment proposed in this utility model.

[0020] Figure 3 This is a schematic diagram of the connection pipeline distribution of the heat exchanger in a high-efficiency heat utilization sodium silicate production equipment proposed in this utility model.

[0021] Figure 4 This is a three-dimensional structural diagram of the stirring rod of a high-efficiency heat-utilizing sodium silicate production equipment proposed in this utility model.

[0022] In the diagram: 1. Burner; 2. Furnace; 3. Hopper; 4. Controllable flow valve; 5. Heat exchanger; 6. High-temperature resistant pipe; 7. Reactor; 8. Cooling device; 9. Fuel feed inlet; 10. Refractory brick; 11. Flue gas outlet; 12. Circulation pipe; 13. Drive motor; 14. Stirring rod; 15. Discharge port; 16. Metering valve; 17. Observation glass. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Example: A high-efficiency heat-utilizing sodium silicate production equipment, such as... Figures 1-4 As shown, the furnace includes a burner 1, a furnace 2 fixedly mounted on the top of the burner 1, a hopper 3 fixedly mounted on the top of the furnace 2, a controllable flow valve 4 fixedly mounted on the bottom of the hopper 3, a heat exchanger 5 composed of several double-pass pipes surrounding the outside of the furnace 2, a high-temperature resistant pipe 6 fixedly mounted on one side of the furnace 2, a reaction vessel 7 fixedly mounted on the other side of the high-temperature resistant pipe, a cooling device 8 fixedly mounted on the outside of the reaction vessel 7, the cooling device 8 being connected to the heat exchanger 5, a fuel feed inlet 9 opening on one side of the burner 1, the top of the burner 1 penetrating through the bottom of the furnace 2 and fixed thereto, the furnace 2 should have certain high-temperature resistance characteristics, and refractory bricks 10 fixedly mounted on the inner side of the furnace 2.

[0026] like Figures 1-4As shown, a flue gas outlet 11 is fixedly provided on one side of the furnace 2. The flue gas outlet 11 is connected to the heat exchanger 5. The cooling device 8 should be able to connect to the water inlet and the air inlet. The cooling device 8 is connected to the inner pipe of the heat exchanger 5, and the outer pipe of the heat exchanger 5 is connected to the flue gas outlet 11. The cooling device 8 heats the water or air inlet through the heat exchanger 5 to achieve circulation. A circulation pipe 12 is opened on one side of the heat exchanger 5. The circulation pipe 12 is separately connected to the reactor 7. By connecting the heat exchanger 5 to the flue gas outlet 11 of the furnace 2, a large amount of waste heat in the flue gas can be recovered and used to preheat raw materials, heat production water or other media required in other process steps, which significantly improves energy utilization and reduces production costs.

[0027] like Figures 1-3 As shown, a drive motor 13 is fixedly installed at the top of the inner wall of the reactor 7, and a stirring rod 14 is fixedly installed at the bottom of the drive motor 13. The stirring rod 14 is located on the central shaft inside the reactor 7. The drive motor 13 drives the stirring rod 14 to rotate. The reactor 7 should have certain acid and alkali resistance characteristics. The reactor 7 is connected to the furnace 2 through a high-temperature resistant pipe 6. A discharge port 15 is fixedly installed on one side of the bottom of the reactor 7. A metering valve 16 for discharging is installed on the inner wall of the discharge port 15. An observation glass 17 is provided on the surface of the reactor 7 for observation. The dissolution effect of the material entering the reactor 7 can be directly checked through the observation glass 17 to avoid problems such as incomplete dissolution or product performance degradation caused by excessively high or low temperatures.

[0028] Working principle: Raw materials such as silica sand are added to furnace 2 in a certain proportion through hopper 3. Fuel is supplied to burner 1 and ignited. The high-temperature flame and flue gas generated by the fuel combustion rapidly heat up the raw materials in furnace 2 and cause a chemical reaction, producing molten sodium silicate. The molten sodium silicate flows into reaction vessel 7 through high-temperature resistant pipe 6. In reaction vessel 7, the agitator continuously stirs the mixture, and the temperature is adjusted as needed by cooling device 8, allowing the sodium silicate to fully mix and dissolve with water or other additives and undergo the necessary chemical reaction, ultimately obtaining a sodium silicate product that meets the requirements, which is discharged through product outlet 15.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency heat-utilizing sodium silicate production equipment, comprising a burner (1), characterized in that, A furnace (2) is fixedly installed at the top of the burner (1), a hopper (3) is fixedly installed at the top of the furnace (2), a controllable flow valve (4) is fixedly installed at the bottom of the hopper (3), a heat exchanger (5) composed of several double-pass pipes is arranged around the outside of the furnace (2), a high-temperature resistant pipe (6) is fixedly installed on one side of the furnace (2), a reaction vessel (7) is fixedly installed on the other side of the high-temperature resistant pipe, a cooling device (8) is fixedly installed on the outside of the reaction vessel (7), and the cooling device (8) is connected to the heat exchanger (5).

2. The high-efficiency heat utilization sodium silicate production equipment according to claim 1, characterized in that, The burner (1) has a fuel inlet (9) on one side. The top of the burner (1) passes through the bottom of the furnace (2) and is fixed. The furnace (2) should have certain high temperature resistance characteristics. Refractory bricks (10) are fixedly installed on the inner side of the furnace (2).

3. The high-efficiency heat utilization sodium silicate production equipment according to claim 1, characterized in that, A flue gas outlet (11) is fixedly provided on one side of the furnace (2), and the flue gas outlet (11) is connected to the heat exchanger (5).

4. The high-efficiency heat utilization sodium silicate production equipment according to claim 3, characterized in that, The cooling device (8) should have the ability to connect water inlet and air inlet. The cooling device (8) is connected to the inner pipe of the heat exchanger (5). The outer pipe of the heat exchanger (5) is connected to the flue gas outlet (11). The cooling device (8) heats the water or air inlet through the heat exchanger (5) to achieve circulation. A circulation pipe (12) is opened on one side of the heat exchanger (5). The circulation pipe (12) is connected to the reactor (7) separately.

5. The high-efficiency heat utilization sodium silicate production equipment according to claim 4, characterized in that, A drive motor (13) is fixedly installed at the top of the inner wall of the reactor (7), and a stirring rod (14) is fixedly installed at the bottom of the drive motor (13). The stirring rod (14) is located on the central axis inside the reactor (7), and the drive motor (13) drives the stirring rod (14) to rotate.

6. The high-efficiency heat utilization sodium silicate production equipment according to claim 5, characterized in that, The reactor (7) should have certain acid and alkali resistance characteristics. The reactor (7) is connected to the furnace (2) by means of a high-temperature resistant pipe (6).

7. The high-efficiency heat utilization sodium silicate production equipment according to claim 6, characterized in that, The bottom side of the reactor (7) is fixedly provided with a discharge port (15), the inner wall of the discharge port (15) is provided with a metering valve (16) for discharging, and the surface of the reactor (7) is provided with an observation glass (17) for observation.

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