CN203259022U - Tail gas heat recovering device of activated carbon rotary furnace - Google Patents

Abstract

The utility model discloses an activated carbon rotary furnace tail gas heat recovery device, which comprises a vertical closed drum and a controller. The upper end of the drum is vertically provided with an air intake pipe leading to exhaust gas with heat. The bottom of the drum is A first water pipe is connected, the end of the first water pipe is connected to a water pump, the outlet pipe of the water pump is connected to a second water pipe, the second water pipe is provided with a second electric valve, and the first water pipe is provided with a water temperature sensor, The input end of the controller is connected with the water temperature sensor, and the output end of the controller is respectively connected with the control ends of the first electric valve and the second electric valve. The activated carbon rotary furnace tail gas heat recovery device can effectively recover the tail gas heat, convert the tail gas temperature into water temperature, facilitate recycling, reduce energy consumption, save production costs, and reduce environmental pollution. The device is ingenious in design, unique in technology, and easy to implement and use , has good practical value.

Description

Activated carbon rotary furnace tail gas heat recovery device

technical field

The utility model relates to the technical field of activated carbon production, in particular to an activated carbon rotary furnace tail gas heat recovery device.

Background technique

In the production of activated carbon, the wood chip carbonization process is a crucial process. The main equipment for wood chip carbonization is an integrated rotary furnace. The integrated rotary furnace is designed with a rotary spray chamber. The main function of the rotary spray chamber is to provide heat for the activation furnace. Sawdust carbonization requires a high temperature and a strong flame in the rotary spray chamber. The tail gas discharge from the whirling chamber contains a lot of heat and contains toxic gases. A common production design is to build a very high chimney to discharge the tail gas from the chimney into the air. Although the environmental pollution is greatly reduced, a large amount of heat Loss, unable to recycle, waste resources, and the process that needs hot water needs to boil hot water again, waste fuel, and the production cost is high. Therefore be the object of the utility model research for the above-mentioned problem.

Utility model content

The purpose of this utility model is to provide an activated carbon rotary furnace tail gas heat recovery device, which can effectively recover the tail gas heat, convert the tail gas temperature into water temperature, facilitate recycling, reduce energy consumption, and save production costs , reduce environmental pollution, the device is ingenious in design, unique in technology, easy to implement and use, and has good practical value.

The technical solution of the utility model is: an activated carbon rotary furnace tail gas heat recovery device, including a vertical closed drum and a controller, the upper end of the drum is vertically provided with an inlet pipe leading to the exhaust gas with heat, so The bottom of the drum is connected to a first water pipe, the end of the first water pipe is connected to a water pump, the outlet pipe of the water pump is connected to a second water pipe, and the other end of the second water pipe is connected to a multi-way pipe joint. Each water outlet pipe of the multi-way pipe joint is connected with a water distribution pipe, and the end of the water distribution pipe is provided with a spray shower for spraying water mist to the center of the drum, and the spray shower is fixed on the inner wall of the drum, and the outlet of the water pump The water pipe is also connected with a recovery pipe for recovering hot water, the recovery pipe is provided with a first electric valve, the second water pipe is provided with a second electric valve, the first water pipe is provided with a water temperature sensor, the The input end of the controller is connected with the water temperature sensor, and the output end of the controller is respectively connected with the control ends of the first electric valve and the second electric valve.

In order to facilitate automatic replacement of the water in the drum, a water inlet pipe is connected to the drum, and a third electric valve is arranged on the water inlet pipe, and the control end of the third electric valve is connected to the output end of the controller.

In order to balance the air pressure in the drum, an air vent for balancing the air pressure is provided in the middle of the drum.

In order to make the controller more stable and less likely to break down, an industrial controller is used, and the controller is a PLC controller.

The utility model has the advantages of: first, the exhaust heat recovery device of the activated carbon rotary furnace can effectively recover the heat of the exhaust gas; second, the device can convert the temperature of the exhaust gas into water temperature, which is convenient for recycling; It helps to reduce energy consumption and save production costs; fourth, recover exhaust heat, reduce water heating, reduce fuel consumption, and reduce environmental pollution; fifth, the device is ingenious in design, unique in technology, easy to implement and use, and has good practical value.

Description of drawings

Fig. 1 is a schematic structural diagram of an activated carbon rotary kiln tail gas heat recovery device in an embodiment.

Explanation of labels: 1-drum 2-intake pipe 3-spray shower 4-water distribution pipe 5-multi-way pipe joint 6-second electric valve 7-first electric valve 8-recovery pipe 9-water pump 10-first water pipe 11-water temperature sensor 12-third electric valve 13-inlet pipe 14-controller 15-second water pipe 16-air vent. the

Detailed ways

In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific examples are given together with the accompanying drawings and described in detail as follows, but the present invention is not limited thereto.

With reference to illustration 1, a kind of activated carbon rotary furnace tail gas heat recovery device comprises a vertical closed cylinder 1 and a controller 14, and the upper end surface of the cylinder 1 is vertically provided with an inlet pipe 2 leading into exhaust gas with heat, so The bottom of the drum 1 is connected with a first water pipe 10, the end of the first water pipe 10 is connected with a water pump 9, the outlet pipe of the water pump 9 is connected with a second water pipe 15, and the other end of the second water pipe 15 is connected with a Multi-way pipe joint 5, each outlet pipe of the multi-way pipe joint 5 is connected with a water distribution pipe 4, and the end of the water distribution pipe 4 is provided with a spray shower 3 for spraying water mist to the center of the drum 1, and the spray flower Sprinkler 3 is fixed on the inner wall of the drum, and the outlet pipe of the water pump 9 is also connected with a recovery pipe 8 for recovering hot water. The recovery pipe 8 is provided with a first electric valve 7, and the second water pipe 15 is provided with a There is a second electric valve 6, the first water pipe 10 is provided with a water temperature sensor 11, the input end of the controller 14 is connected with the water temperature sensor 11, and the output end of the controller 14 is connected with the first electric valve 7 and the first electric valve 7. The control terminals of the two electric valves 6 are respectively connected.

In order to facilitate automatic replacement of the water in the drum 1, a water inlet pipe 13 is connected to the drum 1, and a third electric valve 13 is arranged on the water inlet pipe, and the control end of the third electric valve 13 is connected with the controller 14 output connections.

In order to balance the air pressure in the drum 1 , a vent 16 for balancing the air pressure is provided in the middle of the drum 1 .

In order to make the controller 14 more stable and less likely to break down, an industrial controller is used, and the controller 14 is a PLC controller.

Instructions for use of the utility model: the tail gas of the rotary furnace with a large amount of heat enters from the intake pipe 2, and the water passes through the spray shower 3 to spray the tail gas with heat, and the heat of the tail gas is converted into the heat of water, and the heat of the water pump 9 Under the action, the water in the drum 1 circulates continuously until the water temperature sensor 11 detects that the water temperature in the first water pipe 10 exceeds the water temperature set by the controller 14, closes the second electric valve 6, opens the first electric valve 7, and the hot water It is discharged from the recovery pipe 8 for recycling. At the same time, the third electric valve 13 is opened, and the cold water enters from the water inlet pipe 12. The water temperature in the first water pipe 10 detected by the water temperature sensor 11 is lower than the water temperature set by the controller 14. The second electric valve 6 is opened, the first electric valve 7 is closed, the third electric valve 13 is in a closed state, water circulates continuously in the drum 1, heat is continuously absorbed by the water, and so on.

The above descriptions are only preferred embodiments of the present utility model, and all equivalent changes and modifications made according to the patent scope of the present utility model shall fall within the scope of the present utility model.

Claims (4)

1. activated carbon rotary furnace tail gas heat quantity retracting device, the drum and the controller that comprise a vertical sealing, it is characterized in that: the perpendicular air inlet pipe that passes into heat tail gas that is provided with in described drum upper surface, described drum bottom is connected with the first water pipe, described the first water pipe end is connected with water pump, the outlet pipe of described water pump is connected with the second water pipe, the other end of described the second water pipe is connected with a multiple way union, each outlet pipe of described multiple way union all is connected with a distributive pipe, described distributive pipe end is provided with to the spraying gondola water faucet of drum center spray water smoke, described spraying gondola water faucet is fixed on the drum inwall, the outlet pipe of described water pump also is connected with for the recovery tube that reclaims hot water, described recovery tube is provided with the first electrically operated valve, described the second water pipe is provided with the second electrically operated valve, described the first water pipe is provided with a cooling-water temperature sensor, and the input of described controller is connected with cooling-water temperature sensor, the output of described controller and the first electrically operated valve be connected the control end of electrically operated valve and be connected respectively.

2. a kind of activated carbon rotary furnace tail gas heat quantity retracting device according to claim 1, it is characterized in that: be connected with a water inlet pipe on the described drum, described water inlet pipe is provided with the 3rd electrically operated valve, and the control end of described the 3rd electrically operated valve is connected with the output of controller.

3. a kind of activated carbon rotary furnace tail gas heat quantity retracting device according to claim 1 is characterized in that: be provided with a blow vent for equilibrium air pressure in the middle part of the described drum.

4. a kind of activated carbon rotary furnace tail gas heat quantity retracting device according to claim 1, it is characterized in that: described controller is the PLC controller.