Activation furnace heat recycling device

Abstract

The utility model discloses an activation furnace heat recycling device which comprises an activation furnace body, a smoke outlet is formed in the middle of the side end of the activation furnace body, the smoke outlet is fixedly connected with a smoke exhaust pipeline, the other end of the smoke exhaust pipeline is fixedly connected with a smoke filter, and the smoke filter is fixedly connected with the activation furnace body. The output end of the smoke filter is fixedly connected with a third connecting pipe, the other end of the third connecting pipe is fixedly connected with a shell, the other end of the shell is fixedly connected with a first connecting pipe, a one-way valve is installed in the first connecting pipe, and the other end of the first connecting pipe is fixedly connected with a heat exchanger. The activation furnace comprises an activation furnace main body, a shell is arranged in the activation furnace main body, a gas conveying coil pipe is installed in the shell, one end of the gas conveying coil pipe is fixedly connected with a gas inlet pipeline, a discharging port is formed in the middle of the lower end of the activation furnace main body, and a plurality of ventilation pipes are installed on the side wall of the discharging port. And the fuel consumption is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of coal-based activated carbon preparation, in particular to a heat recycling device for an activation furnace. Background Art

[0002] Coal-based activated carbon is developed through a series of processes such as carbonization → cooling → activation → washing. Its appearance is generally black cylindrical activated carbon, amorphous coal-based granular activated carbon, also known as broken carbon. Cylindrical activated carbon is also called columnar carbon, which is generally made of powdered raw materials and binders through kneading, extrusion molding, and then carbonization, activation and other processes. It can also be extruded with powdered activated carbon plus a binder. It has developed pore structure, good adsorption performance, high mechanical strength, easy repeated regeneration, low cost, etc.; it is used for purification of toxic gases, waste gas treatment, purification of industrial and domestic water, solvent recovery, etc.

[0003] The patent application number is "CN201920416333.0", and the patent name is "An activation system for activated coke or activated carbon". It includes a first half furnace and a second half furnace with the same structure. The first half furnace includes a furnace body and a furnace core arranged inside the furnace body. The furnace body is a closed cavity. A loading port is opened at the top of the furnace body, and a discharge port is opened at the bottom of the furnace body. A reprocessing bin is arranged below the discharge port. The reprocessing bin is connected to the bottom of the furnace body. A number of vent pipes for introducing oxygen-containing mixed gas are arranged on the side wall of the reprocessing bin. The furnace body is divided into a loading section, a preheating section, a reaction section, a cooling section, a rapid cooling section, and a discharge section from top to bottom. The activated material is further oxidized through the reprocessing bin and the vent pipe for introducing oxygen-containing mixed gas arranged below the discharge port to increase the strength of the material and enrich the porosity.

[0004] However, the flue gas discharged from the above device carries a large amount of heat, which cannot be utilized by the above device, thereby increasing the amount of fuel consumed, which is not conducive to energy conservation and environmental protection. Utility Model Content

[0005] The utility model aims to provide an activation furnace heat recycling device, which can recycle the heat in the flue gas discharged from the activation furnace, increase the temperature in the activation furnace, and reduce the consumption of fuel.

[0006] To achieve the above-mentioned purpose, an activation furnace heat recycling device is provided, comprising: an activation furnace main body, a smoke exhaust port is arranged in the middle of the side end of the activation furnace main body, the smoke exhaust port is fixedly connected to a smoke exhaust pipe, the other end of the smoke exhaust pipe is fixedly connected to a smoke filter, and the smoke exhaust pipe is connected to the input end of the smoke filter, the output end of the smoke filter is fixedly connected to a third connecting pipe, the other end of the third connecting pipe is fixedly connected to a shell, and the third connecting pipe is connected to the shell, the other end of the shell is fixedly connected to a first connecting pipe, a one-way valve is installed in the first connecting pipe, the other end of the first connecting pipe is fixedly connected to a heat exchanger, and the first connecting pipe is connected to the heat exchanger. The air inlet end of the device is fixedly connected, a gas delivery coil is installed in the shell, and the two end interfaces of the gas delivery coil respectively penetrate the shell and extend to the outside of the shell, one end of the gas delivery coil is fixedly connected to the air inlet pipe, the lower end of the shell is fixedly connected to the support legs, and the support legs are respectively located at the four corners of the shell, the lower end of the support legs and the lower end of the activation furnace body are in the same plane, a discharge port is opened in the middle of the lower end of the activation furnace body, a number of ventilation pipes are installed on the side wall of the discharge port, and the ventilation pipes extend into the discharge port, the other end of the several ventilation pipes is fixedly connected to an annular shunt pipe, and the discharge port is located in the middle of the shunt pipe, and one end of the air inlet pipe is fixedly connected to the shunt pipe. The heat in the flue gas discharged from the activation furnace can be recycled, the temperature in the activation furnace is increased, and the fuel consumption is reduced.

[0007] According to the activation furnace heat recycling device, a drain pipe is installed at the middle of the lower end of the shell, so that the liquid liquefied when the smoke in the shell is cooled can be discharged from the shell to avoid affecting the absorption of heat in the smoke.

[0008] According to the activation furnace heat recycling device, the side end of the third connecting pipe is fixedly connected to the second connecting pipe, and the other end of the second connecting pipe is fixedly connected to the first connecting pipe, and the second connecting pipe is located between the smoke filter and the shell. It is convenient to control the heat in the activation furnace, and when the smoke cannot enter the shell, the heat of the smoke can be absorbed to avoid the waste of the heat of the smoke.

[0009] According to the activation furnace heat recycling device, solenoid valves are respectively installed in the second connecting pipe and the third connecting pipe, so as to control the working states of the second connecting pipe and the third connecting pipe respectively.

[0010] According to the activation furnace heat recycling device, the solenoid valve of the second connecting pipe is located between the first connecting pipe and the third connecting pipe, so as to avoid affecting the normal operation of the first connecting pipe when closing the second connecting pipe.

[0011] According to the activation furnace heat recycling device, the electromagnetic valve in the third connecting pipe is located between the second connecting pipe and the shell, so as to avoid the smoke from entering the second connecting pipe when the third connecting pipe is closed.

[0012] The beneficial effects of the utility model are as follows:

[0013] 1. The flue gas enters the shell, and the oxygen-containing gas absorbs the heat in the flue gas when passing through the gas transmission coil, thereby increasing the temperature of the oxygen-containing gas, thereby bringing a large amount of physical heat into the activation furnace body, reducing fuel consumption, and further absorbing the heat in the flue gas through the heat exchanger, thereby improving the heat recovery effect in the flue gas.

[0014] 2. When the temperature in the activation furnace body is too high, the third connecting pipe can be closed by the solenoid valve to prevent the flue gas from entering the shell, so that the oxygen-containing gas cannot absorb heat, which is convenient for controlling the temperature in the activation furnace body and recovering the heat in the flue gas through the heat exchanger to avoid waste of heat in the flue gas.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0017] Figure 1 This is a three-dimensional structural diagram of a heat recycling device for an activation furnace according to the utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of a heat recycling device for an activation furnace according to the utility model;

[0019] Figure 3 This is a bottom-view stereoscopic structural diagram of an activation furnace main body of an activation furnace heat recycling device of the utility model.

[0020] Legend:

[0021] 1. First connecting pipe; 2. Activation furnace body; 3. Smoke filter; 4. Heat exchanger; 5. Second connecting pipe; 6. Smoke exhaust pipe; 7. Solenoid valve; 8. Shell; 9. Support leg; 10. Gas coil; 11. Air intake pipe; 12. Third connecting pipe; 13. Ventilation pipe; 14. Discharge port; 15. Diversion pipe. Implementation

[0022] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0023] Reference Figure 1-3 The utility model embodiment provides a heat recycling device for an activation furnace, which includes: an activation furnace body 2, a smoke exhaust port is arranged in the middle of the side end of the activation furnace body 2, the smoke exhaust port is fixedly connected to a smoke exhaust pipe 6, the other end of the smoke exhaust pipe 6 is fixedly connected to a smoke filter 3, and the smoke exhaust pipe 6 is communicated with the input end of the smoke filter 3, the output end of the smoke filter 3 is fixedly connected to a third connecting pipe 12, the other end of the third connecting pipe 12 is fixedly connected to a shell 8, and the third connecting pipe 12 is communicated with the shell 8, the other end of the shell 8 is fixedly connected to a first connecting pipe 1, a one-way valve is installed in the first connecting pipe 1, the other end of the first connecting pipe 1 is fixedly connected to a heat exchanger 4, and the first connecting pipe 1 is fixedly connected to the air inlet end of the heat exchanger 4 A gas delivery coil 10 is installed in the shell 8, and the interfaces at both ends of the gas delivery coil 10 respectively penetrate the shell 8 and extend to the outside of the shell 8, one end of the gas delivery coil 10 is fixedly connected to an air intake pipe 11, and the lower end of the shell 8 is fixedly connected to a support leg 9, and the support legs 9 are respectively located at the four corners of the shell 8, the lower end of the support leg 9 is in the same plane as the lower end of the activation furnace body 2, and a discharge port 14 is opened in the middle of the lower end of the activation furnace body 2, and a plurality of ventilation pipes 13 are installed on the side wall of the discharge port 14, and the ventilation pipes 13 extend into the discharge port 14, the other ends of the plurality of ventilation pipes 13 are fixedly connected to a ring-shaped shunt pipe 15, and the discharge port 14 is located in the middle of the shunt pipe 15, and one end of the air intake pipe 11 is fixedly connected to the shunt pipe 15.

[0024] A drain pipe is installed in the middle of the lower end of the shell 8.

[0025] The side end of the third connecting pipe 12 is fixedly connected to the second connecting pipe 5 , and the other end of the second connecting pipe 5 is fixedly connected to the first connecting pipe 1 . The second connecting pipe 5 is located between the smoke filter 3 and the housing 8 .

[0026] Solenoid valves 7 are installed in the second connecting pipe 5 and the third connecting pipe 12 respectively.

[0027] The solenoid valve 7 of the second connecting pipe 5 is located between the first connecting pipe 1 and the third connecting pipe 12 .

[0028] The solenoid valve 7 in the third connecting pipe 12 is located between the second connecting pipe 5 and the housing 8 .

[0029] Working principle: When the activation furnace body 2 is working, the solenoid valve 7 in the third connecting pipe 12 is opened, the solenoid valve 7 in the second connecting pipe 5 is closed, the gas delivery coil 10 is connected to the external pipeline for delivering oxygen-containing gas, the water inlet of the heat exchanger 4 is connected to the external cooling water pipeline, the flue gas in the activation furnace body 2 enters the smoke filter 3 through the smoke exhaust pipe 6, the dust particles therein are filtered, and then the flue gas enters the shell 8 through the third connecting pipe 12, and the oxygen-containing gas enters the activation furnace body 2 through the gas delivery coil 10, the air intake pipe 11, the diversion pipe 15 and the ventilation pipe 13 in turn. When the oxygen-containing gas passes through the gas delivery coil 10, the heat of the flue gas The amount is transferred to the oxygen-containing gas through the gas transmission coil 10, the heat of the flue gas is absorbed, the temperature of the oxygen-containing gas is increased, and a large amount of physical heat is brought into the activation furnace main body 2, and then the flue gas enters the heat exchanger 4 through the first connecting pipe 1 to further recover the heat of the flue gas. When the temperature of the activation furnace main body 2 is too high, the solenoid valve 7 in the third connecting pipe 12 is closed, and the solenoid valve 7 in the second connecting pipe 5 is opened, so that the flue gas does not pass through the shell 8, but directly enters the heat exchanger 4 through the second connecting pipe 5, so as to recover the heat of the flue gas, avoid increasing the heat of the oxygen-containing gas, and facilitate the adjustment of the temperature in the activation furnace main body 2.

[0030] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. An activation furnace heat recycling device, characterized in that: include: An activation furnace body (2), wherein a smoke exhaust port is provided at the middle of a side end of the activation furnace body (2), wherein the smoke exhaust port is fixedly connected to a smoke exhaust pipe (6), wherein the other end of the smoke exhaust pipe (6) is fixedly connected to a smoke filter (3), and the smoke exhaust pipe (6) is connected to the input end of the smoke filter (3), wherein the output end of the smoke filter (3) is fixedly connected to a third connecting pipe (12), wherein the other end of the third connecting pipe (12) is fixedly connected to a shell (8), and the third connecting pipe (12) is connected to the shell (8), wherein the other end of the shell (8) is fixedly connected to a first connecting pipe (1), wherein a one-way valve is installed in the first connecting pipe (1), wherein the other end of the first connecting pipe (1) is fixedly connected to a heat exchanger (4), and the first connecting pipe (1) is fixedly connected to the air inlet end of the heat exchanger (4), wherein a gas transmission coil (12) is installed in the shell (8), wherein the first connecting pipe (12) is connected to the air inlet end of the heat exchanger (4), wherein the ... 0), and the interfaces at both ends of the gas delivery coil (10) respectively penetrate the shell (8) and extend to the outside of the shell (8), one end of the gas delivery coil (10) is fixedly connected to an air intake pipe (11), the lower end of the shell (8) is fixedly connected to a support leg (9), and the support leg (9) is respectively located at the four corners of the shell (8), the lower end of the support leg (9) is in the same plane as the lower end of the activation furnace body (2), a discharge port (14) is opened in the middle of the lower end of the activation furnace body (2), a plurality of ventilation pipes (13) are installed on the side wall of the discharge port (14), and the ventilation pipes (13) extend into the discharge port (14), the other ends of the plurality of ventilation pipes (13) are fixedly connected to an annular shunt pipe (15), and the discharge port (14) is located in the middle of the shunt pipe (15), and one end of the air intake pipe (11) is fixedly connected to the shunt pipe (15).

2. The activation furnace heat recycling device according to claim 1, characterized in that: A drainage pipe is installed in the middle of the lower end of the shell (8).

3. The activation furnace heat recycling device according to claim 1, characterized in that: The side end of the third connecting pipe (12) is fixedly connected to the second connecting pipe (5), and the other end of the second connecting pipe (5) is fixedly connected to the first connecting pipe (1), and the second connecting pipe (5) is located between the smoke filter (3) and the housing (8).

4. The activation furnace heat recycling device according to claim 3, characterized in that: Solenoid valves (7) are respectively installed in the second connecting pipe (5) and the third connecting pipe (12).

5. The activation furnace heat recycling device according to claim 4, characterized in that: The solenoid valve (7) of the second connecting pipe (5) is located between the first connecting pipe (1) and the third connecting pipe (12).

6. The activation furnace heat recycling device according to claim 4, characterized in that: The solenoid valve (7) in the third connecting pipe (12) is located between the second connecting pipe (5) and the housing (8).

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