A steam supply system for a slurry activation furnace

Abstract

The utility model relates to a kind of steam supply system for serep active furnace, including and the flue of the furnace body inner cavity of active furnace is connected;Flue is connected with steam generator by gas inlet, and steam generator is connected with steam passage by gas outlet, and steam passage is connected with flash tower, and flash tower is connected with furnace body by injection pump;The utility model directly inputs the tail gas generated by active furnace into steam generator, so that the tail gas waste heat is all introduced into steam generator, and then the tail gas waste heat is fully utilized, waste heat is avoided, and it is simple, efficient, safe and reliable.

Description

Technical Field

[0001] This utility model relates to the field of waste heat utilization technology of exhaust gas, and in particular to a steam supply system for a Sleip activation furnace. Background Technology

[0002] The SLEP (Simplified Laminar Activation) furnace is a specialized piece of equipment used for producing activated carbon. It is widely used in the activated carbon manufacturing industry due to its high efficiency, energy saving, and environmental friendliness. The SLEP furnace belongs to the physical activation method, where high-temperature steam reacts with carbonizing materials (such as coconut shells, wood, and coal) to form porous activated carbon. During the activated carbon production process in the SLEP furnace, the coal reacts at high temperatures, producing exhaust gas containing water vapor, CO2, CO, N2, O2, SO2, and dust. Direct emission of this exhaust gas causes environmental pollution and significant energy waste.

[0003] Existing steam supply systems typically collect the exhaust gas from the activation furnace and heat it through a heat exchanger to recover and utilize the waste heat in the exhaust gas. However, this method has some problems: the driving force of heat transfer is the temperature difference, and heat energy is always transferred from a high temperature area to a low temperature area. When the temperature of the exhaust gas and the temperature of the conductor receiving the heat are equal, heat exchange can no longer continue, and the residual heat in the exhaust gas will be wasted. Utility Model Content

[0004] This invention addresses the shortcomings of existing technologies by providing a steam supply system for the Sleip activation furnace that directly inputs the exhaust gas generated by the activation furnace into a steam generator, thereby fully utilizing the exhaust gas's waste heat, avoiding waste, and is simple, efficient, safe, reliable, and easy to operate.

[0005] This utility model is achieved through the following technical solution: a steam supply system for a Sleip activation furnace is provided, including a flue connected to the furnace body cavity of the activation furnace; the flue is connected to a steam generator through an air inlet, the steam generator is connected to a steam channel through an air outlet, the steam channel is connected to a flash tower, and the flash tower is connected to the furnace body through a jet pump; by directly inputting the exhaust gas generated by the activation furnace into the steam generator, all the waste heat of the exhaust gas is introduced into the steam generator, thereby making full use of the waste heat of the exhaust gas and avoiding waste of waste heat.

[0006] As an optimization, the steam generator is equipped with a filter device, with the air inlet and outlet located on opposite sides of the filter device; the filter device filters impurities in the exhaust gas to prevent impurities from re-entering the furnace body.

[0007] As an optimization, the filtration device includes several filter screens arranged in sequence, with the mesh size of the filter screens gradually decreasing towards the air outlet; impurities in the exhaust gas are filtered sequentially through the filter screens to avoid clogging.

[0008] As an optimization, each filter screen is equipped with a conveying pipe at its bottom, and the conveying pipes are connected in sequence. The air inlet is located in the innermost conveying pipe, and the bottom of any conveying pipe is located below the connection between the flue and the steam generator. The impurities filtered by the filter screen are transported to the bottom of the steam generator through the conveying pipe.

[0009] As an optimization, a propeller with its axis extending vertically is installed inside the steam generator. The propeller is located between the filter device and the air inlet, with the air inlet located directly below the propeller. The exhaust gas is input into the water inside the steam generator and generates bubbles. The propeller rotates under the action of the bubbles and disperses the exhaust gas, preventing impurities in the exhaust gas from accumulating on the filter device and clogging it.

[0010] As an optimization, a water inlet is provided on the steam generator, and the water inlet is connected to a water replenisher; water is added to the steam generator through the water replenisher to avoid the steam generator having too little water.

[0011] As an optimization, a water level monitoring device is installed inside the steam generator, and a valve A connected to the water level monitoring device is installed at the water inlet; water is automatically replenished into the steam generator through the water level monitoring device and valve A.

[0012] As an optimization, the steam generator is equipped with a heating mechanism, and a temperature detection device connected to the heating mechanism is installed inside the steam generator; the temperature inside the steam generator is maintained by the heating mechanism and the temperature detection device to avoid insufficient waste heat of the exhaust gas.

[0013] As an optimization, a sludge hopper is provided at the bottom of the steam generator, and a sludge discharge port is provided at the bottom of the sludge hopper. The sludge discharge port is equipped with valve B. Impurities in the steam generator are collected through the sludge hopper and discharged through the sludge discharge port.

[0014] The beneficial effects of this utility model are as follows: by directly inputting the exhaust gas generated by the activation furnace into the steam generator, all the waste heat of the exhaust gas is introduced into the steam generator, thereby making full use of the waste heat of the exhaust gas and avoiding waste of waste heat; the exhaust gas is input into the water in the steam generator and generates bubbles, the propeller rotates under the action of the bubbles and disperses the exhaust gas, the filter screen of the filter device filters the impurities in the exhaust gas in sequence, the bubbles drive the water to slosh, and the impurities are transported to the bottom of the steam generator through the conveying pipe under the action of gravity. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] As shown in the figure:

[0017] 1. Furnace body, 2. Flue, 3. Steam generator, 4. Steam passage, 5. Flash tower, 6. Jet pump, 7. Filter device, 8. Feed pipe, 9. Propeller, 10. Water replenisher, 11. Water level monitoring device, 12. Valve A, 13. Heating mechanism, 14. Temperature detection device, 15. Sludge hopper, 16. Valve B, 701. Filter screen. Detailed Implementation

[0018] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0019] like Figure 1 The steam supply system for the Sleip activation furnace shown in this utility model includes a flue 2 connected to the inner cavity of the furnace body 1 of the activation furnace; the flue 2 is connected to a steam generator 3 through an air inlet, the steam generator 3 is connected to a steam channel 4 through an air outlet, the steam channel 4 is connected to a flash tower 5, and the flash tower 5 is connected to the furnace body 1 through a jet pump 6; the flash tower 5 and the jet pump 6 are existing technologies.

[0020] The exhaust gas generated inside the furnace body 1 is transported to the water in the steam generator 3 through the flue 2. Bubbles are generated in the water, and impurities in the exhaust gas remain in the water. The residual heat in the exhaust gas heats the water in the steam generator 3. The water is heated to a certain temperature to generate steam, which is then transported to the flash tower 5 through the steam channel 4. The flash tower 5 processes the steam, and the jet pump 6 draws the steam from the flash tower 5 and transports it back to the furnace body 1.

[0021] like Figure 1 The steam generator 3 shown is equipped with a filter device 7, and the air inlet and air outlet are located on both sides of the filter device 7, respectively; the air inlet is located directly below the filter device 7, and the air outlet is located above the filter device 7.

[0022] The exhaust gas generated inside the furnace body 1 is transported to the water in the steam generator 3 through the flue 2. Bubbles are generated in the water, float upward and pass through the filter device 7, and impurities in the exhaust gas remain at the bottom of the filter device 7.

[0023] like Figure 1 The filter device 7 shown includes a plurality of filter screens 701 arranged in sequence, and the mesh size of the filter screens 701 approaching the air outlet gradually decreases; the filter screens 701 are arranged in sequence in the vertical direction, and the mesh size of the filter screens 701 decreases from bottom to top; the top of the filter screens 701 adopts a conical structure.

[0024] The exhaust gas generated inside the furnace body 1 is transported to the water in the steam generator 3 through the flue 2. Bubbles are generated in the water, float upward and pass through the filter screen 701 in sequence, and impurities in the exhaust gas are successively settled at the bottom of the filter screen 701.

[0025] like Figure 1Each filter screen 701 shown has a feeding pipe 8 at its bottom. The feeding pipes 8 are connected in sequence. The air inlet is located in the innermost feeding pipe 8, and the bottom of any feeding pipe 8 is located below the connection between the flue 2 and the steam generator 3.

[0026] The exhaust gas generated inside the furnace body 1 is transported to the water in the steam generator 3 through the flue 2. Bubbles are generated in the water, float upward and pass through the filter screen 701 in sequence. Impurities in the exhaust gas are successively settled at the bottom of the filter screen 701. The bubbles cause the water in the steam generator 3 to slosh. The impurities at the bottom of the filter screen 701 move along the feed pipe 8 to the bottom of the steam generator 3 under the flushing of the water flow and the action of gravity.

[0027] like Figure 1 The steam generator 3 shown is equipped with a propeller 9 whose axis extends vertically. The propeller 9 is located between the filter device 7 and the air inlet, and the air inlet is located directly below the propeller 9. The axis of the propeller 9 extends vertically.

[0028] Bubbles are generated in the water, float upwards and drive the water flow in the steam generator 3. The water flow drives the propeller 9 to rotate, and the rotating propeller 9 breaks up the bubbles. The bubbles pass evenly through the filter device 7.

[0029] like Figure 1 The steam generator 3 shown has a water inlet, which is connected to a water supply device 10; the water supply device 10 is existing technology.

[0030] After the water level in the steam generator 3 decreases, the water replenisher 10 is turned on and water is introduced into the steam generator 3. After the water in the steam generator 3 is replenished, the water replenisher 10 is turned off.

[0031] like Figure 1 The steam generator 3 shown is equipped with a water level monitoring device 11, and the water inlet is equipped with a valve A12 connected to the water level monitoring device 11; the water level monitoring device 11 is existing technology.

[0032] After the water level monitoring device 11 detects a decrease in the water level in the steam generator 3, valve A12 opens and the water replenisher 10 inputs water into the steam generator 3. After the water level monitoring device 11 detects that the water in the steam generator 3 has been replenished, valve A12 closes and the water replenisher 10 stops inputting water into the steam generator 3.

[0033] like Figure 1 The steam generator 3 shown is equipped with a heating mechanism 13, and a temperature detection device 14 connected to the heating mechanism 13 is provided inside the steam generator 3; the heating mechanism 13 and the temperature detection device 14 are existing technologies.

[0034] After the temperature detection device 14 detects that the water temperature in the steam generator 3 is too low, the heating mechanism 13 turns on and heats the water in the steam generator 3. After the water level monitoring device 11 detects that the water temperature in the steam generator 3 has reached the standard, the heating mechanism 13 turns off and stops heating the water in the steam generator 3.

[0035] like Figure 1 The bottom of the steam generator 3 shown is provided with a sludge hopper 15, and the bottom of the sludge hopper 15 is provided with a sludge discharge port, which is equipped with a valve B16.

[0036] Impurities in the steam generator 3 accumulate at the bottom of the sludge hopper 15. Open valve B16 and the impurities are discharged through the sludge discharge port. After the impurities are discharged, close valve B16.

[0037] In actual production, the exhaust gas generated in the furnace body 1 is transported to the water in the steam generator 3 through the flue 2. Bubbles are generated in the water, which float upwards and drive the water flow in the steam generator 3. The water flow drives the propeller 9 to rotate, and the propeller 9 disperses the bubbles. The bubbles pass evenly through the filter device 7. The bubbles float upwards and pass through the filter screen 701 in sequence. The residual heat in the exhaust gas heats the water in the steam generator 3. The water is heated to a certain temperature to generate steam, which is transported to the flash tower 5 through the steam channel 4. The flash tower 5 processes the steam. The jet pump 6 draws the steam from the flash tower 5 and transports it to the furnace body 1. Impurities in the exhaust gas settle at the bottom of the filter screen 701 in sequence. The bubbles cause the water in the steam generator 3 to slosh. The impurities at the bottom of the filter screen 701 move along the conveying pipe 8 to the bottom of the steam generator 3 under the flushing of the water flow and the action of gravity. The impurities in the steam generator 3 gather at the bottom of the sludge hopper 15. The valve B16 is opened, and the impurities are discharged through the sludge discharge port. After the impurities are discharged, the valve B16 is closed.

[0038] After the water level monitoring device 11 detects a decrease in the water level in the steam generator 3, valve A12 opens and the water replenisher 10 inputs water into the steam generator 3. After the water level monitoring device 11 detects that the water in the steam generator 3 has been replenished, valve A12 closes and the water replenisher 10 stops inputting water into the steam generator 3.

[0039] After the temperature detection device 14 detects that the water temperature in the steam generator 3 is too low, the heating mechanism 13 turns on and heats the water in the steam generator 3. After the water level monitoring device 11 detects that the water temperature in the steam generator 3 has reached the standard, the heating mechanism 13 turns off and stops heating the water in the steam generator 3.

[0040] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.

Claims

1. A steam supply system for a Sleip activation furnace, comprising a flue (2) communicating with the inner cavity of the furnace body (1) of the activation furnace; characterized in that: The flue (2) is connected to the steam generator (3) through the air inlet. The steam generator (3) is connected to the steam channel (4) through the air outlet. The steam channel (4) is connected to the flash tower (5). The flash tower (5) is connected to the furnace body (1) through the jet pump (6).

2. The steam supply system for the Sleip activation furnace according to claim 1, characterized in that: The steam generator (3) is equipped with a filter device (7), and the air inlet and outlet are located on both sides of the filter device (7).

3. The steam supply system for the Sleip activation furnace according to claim 2, characterized in that: The filter device (7) includes a plurality of filter screens (701) arranged in sequence, and the mesh size of the filter screens (701) approaching the air outlet gradually decreases.

4. The steam supply system for the Sleip activation furnace according to claim 3, characterized in that: Each filter screen (701) has a feeding pipe (8) at its bottom. The feeding pipes (8) are connected in sequence. The air inlet is located inside the innermost feeding pipe (8), and the bottom of any feeding pipe (8) is located below the connection between the flue (2) and the steam generator (3).

5. The steam supply system for the Sleip activation furnace according to claim 1, characterized in that: The steam generator (3) is equipped with a propeller (9) whose axis extends vertically. The propeller (9) is located between the filter device (7) and the air inlet, and the air inlet is located directly below the propeller (9).

6. The steam supply system for the Sleip activation furnace according to claim 1, characterized in that: The steam generator (3) has a water inlet, and the water inlet is connected to a water supply device (10).

7. The steam supply system for the Sleip activation furnace according to claim 6, characterized in that: The steam generator (3) is equipped with a water level monitoring device (11), and the water inlet is equipped with a valve A (12) connected to the water level monitoring device (11).

8. The steam supply system for the Sleip activation furnace according to claim 1, characterized in that: The steam generator (3) is equipped with a heating mechanism (13), and the steam generator (3) is equipped with a temperature detection device (14) connected to the heating mechanism (13).

9. The steam supply system for the Sleip activation furnace according to claim 1, characterized in that: The bottom of the steam generator (3) is provided with a sludge collection hopper (15), and the bottom of the sludge collection hopper (15) is provided with a sludge discharge port, and the sludge discharge port is provided with a valve B (16).

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