Roasting furnace waste flue gas waste heat recycling system

Abstract

The utility model discloses a roasting furnace waste flue gas waste heat recycling system which comprises a waste flue gas collecting assembly. The heat exchanger is connected with the waste flue gas collecting assembly, the heat exchanger is a heat pipe type heat exchanger, and the waste flue gas collecting assembly conveys the collected waste flue gas into the heat exchanger; the tail end system is connected with the heat exchanger; the tail end system comprises a factory area heating assembly, a life heating assembly and water supplementing equipment. And the tail end system absorbs the heat of the waste flue gas through the heat exchanger in a heat exchange manner. According to the waste heat recycling system, after waste smoke is collected, the heat exchanger is used for conducting heat exchange with water used in a factory area and a living area, waste smoke waste heat is reasonably utilized, heat energy supplementation in the production process can be achieved, and production efficiency is improved. According to the system, energy consumption is reduced, and dependence on external energy can be reduced through utilization of waste heat of waste smoke.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial energy saving, in particular to a system for recycling waste heat from waste smoke from a roasting furnace. Background Art

[0002] During the production process, the roasting furnace will produce a large amount of waste flue gas, which has a high temperature and contains abundant heat energy. In the traditional industrial production process, these waste flue gases are often directly discharged, resulting in a large amount of heat energy waste. Therefore, how to effectively utilize the waste heat in these waste flue gases, reduce energy consumption in the production process, and improve energy utilization efficiency has become an urgent problem to be solved in the current industrial energy conservation field.

[0003] Therefore, based on the above technical problems, technicians in this field urgently need to develop a roasting furnace waste flue gas waste heat recycling system. Utility Model Content

[0004] The utility model aims to provide a system for recycling waste heat from waste flue gas of a roasting furnace, which collects waste flue gas generated by the roasting furnace and reasonably utilizes the waste heat of the waste flue gas through a heat exchanger, thereby achieving energy saving and consumption reduction and improving production efficiency.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The utility model discloses a system for recycling waste heat from waste flue gas from a roasting furnace, the system comprising:

[0007] Waste flue gas collection assembly;

[0008] a heat exchanger connected to the waste flue gas collection component, wherein the heat exchanger is a heat pipe heat exchanger, and the waste flue gas collection component transports the collected waste flue gas into the heat exchanger; and

[0009] A terminal system connected to the heat exchanger;

[0010] The terminal system includes a factory heating component, a domestic heating component and a water supply device;

[0011] The terminal system absorbs the heat of the waste flue gas by heat exchange through the heat exchanger.

[0012] Furthermore, the waste flue gas collection assembly comprises:

[0013] Multiple air collecting pipes; and

[0014] A hot air main pipe connected to the plurality of air collecting pipes;

[0015] An induced draft fan is provided at the other end of the heat exchanger;

[0016] The air collecting pipe collects the waste flue gas and collects the waste flue gas to the hot air main pipe, and guides the waste flue gas to the heat pipe of the heat exchanger through the induced draft fan.

[0017] Furthermore, the plant heating component includes:

[0018] a hot water tank connected to the shell side of the heat exchanger; and

[0019] A factory heating pipeline connected to the hot water tank, wherein the factory heating pipeline is connected to a factory heating radiator pipeline to transport hot water in the hot water tank to the factory heating radiator;

[0020] A plant area circulating water pump is installed on the plant area heating pipeline.

[0021] Furthermore, the living heating component comprises:

[0022] a warm water tank connected to the hot water tank through a pipeline; and

[0023] A living area heating pipe connected to the warm water tank, wherein the living area heating pipe is connected to the living area floor heating pipe so as to transport the warm water in the warm water tank to the living area floor heating pipe;

[0024] A living area circulating water pump is installed on the living area heating pipeline.

[0025] Furthermore, the plant heating radiator is connected to the warm water tank through a first return pipe to return the water after heat exchange to the warm water tank;

[0026] The living area floor heating is connected to the warm water tank through a second water return pipe to return the water after heat exchange to the warm water tank.

[0027] Furthermore, the warm water tank is connected to the shell side of the heat exchanger through a water delivery pump to deliver the water to be heated into the heat exchanger.

[0028] Furthermore, the water replenishment equipment is a water replenishment pump connected to the warm water tank.

[0029] Furthermore, the water supply pump adopts the water supply pump of the factory air compressor station.

[0030] Furthermore, the heat exchanger is arranged between two roasting furnaces.

[0031] In the above technical scheme, the utility model provides a roasting furnace waste flue gas waste heat recycling system, which has the following beneficial effects:

[0032] The waste heat recycling system of the utility model collects waste flue gas and uses a heat exchanger to exchange heat with water in the factory area and living area. The waste heat of the waste flue gas is reasonably utilized to supplement the heat energy of the production process and improve production efficiency. The system reduces energy consumption, and the utilization of waste heat from the waste flue gas can reduce dependence on external energy.

[0033] The waste heat recycling system of the utility model can reduce exhaust gas emission and reduce pollution to the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0035] Figure 1 This is a system flow chart of a system for recycling waste heat from waste flue gas from a roasting furnace disclosed in an embodiment of the present application.

[0036] Description of reference numerals:

[0037] 1. Waste flue gas collection assembly; 2. Heat exchanger; 3. Factory area heating assembly; 4. Living area heating assembly; 5. Make-up water pump; 6. Delivery water pump;

[0038] 101. air collecting pipe; 102. hot air main pipe; 103. induced draft fan;

[0039] 301, hot water tank; 302, factory heating pipeline; 303, factory heating radiator; 304, first return water pipe; 305, factory circulating water pump;

[0040] 401. Warm water tank; 402. Heating pipes in living area; 403. Floor heating pipes in living area; 404. Second return water pipe; 405. Circulating water pump in living area. DETAILED DESCRIPTION

[0041] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0042] See also Figure 1 As shown;

[0043] This embodiment discloses a system for recycling waste heat from waste flue gas from a roasting furnace, the system comprising:

[0044] Waste flue gas collection component 1;

[0045] A heat exchanger 2 connected to the waste flue gas collecting component 1, wherein the heat exchanger 2 is a heat pipe heat exchanger, and the waste flue gas collecting component 1 conveys the collected waste flue gas into the heat exchanger 2; and

[0046] A terminal system connected to the heat exchanger 2;

[0047] The terminal system includes the plant heating component 3, the domestic heating component 4 and the water supply equipment;

[0048] The terminal system absorbs the heat of the exhaust gas by heat exchange through the heat exchanger 2.

[0049] Specifically, this embodiment discloses a waste heat recycling system capable of recovering and reusing the waste flue gas of a roasting furnace, which is divided into a waste flue gas collection component 1, a heat exchanger 2 and a terminal system; wherein the terminal system is a heat-using terminal module, which is divided into two terminal heat-using systems, namely, plant heating and life heating. The waste flue gas collection component 1 of this embodiment collects the high-temperature waste flue gas generated when the roasting furnace is working, and collects and drains the waste flue gas to transport it to the heat exchanger. The heat exchanger 2 of this embodiment adopts a heat pipe heat exchanger, wherein the waste flue gas is transported to the heat pipe, that is, the tube side of the heat exchanger 2, and the water of the terminal system is transported to the shell side of the heat exchanger 2, thus realizing the heat exchange between the high-temperature waste flue gas and water. In this way, waste heat can be recovered and the direct discharge of waste flue gas to pollute the environment can be avoided.

[0050] Preferably, the waste smoke collection assembly 1 of this embodiment includes:

[0051] A plurality of air collecting pipes 101; and

[0052] A hot air main pipe 102 connected to the plurality of air collecting pipes 101;

[0053] The other end of the heat exchanger 2 is provided with an induced draft fan 103;

[0054] The air collecting pipe 101 collects the waste flue gas and collects the waste flue gas into the hot air main pipe 102 , and guides the waste flue gas into the heat pipe of the heat exchanger 2 through the induced draft fan 103 .

[0055] First, the present embodiment further defines a waste flue gas collection component 1, which includes a plurality of air collecting pipes 101, and the waste flue gas is collected into the air collecting pipes 101 through the air collecting heads of the air collecting pipes 101, and transported to the hot air main pipe 102, and then drained into the heat exchanger 2 by the induced draft fan 103.

[0056] Preferably, the first heat-using area of ​​the present embodiment is a plant heating component 3. Specifically, the plant heating component 3 of the present embodiment includes:

[0057] A hot water tank 301 connected to the shell side of the heat exchanger 2; and

[0058] A plant heating pipe 302 connected to the hot water tank 301, the plant heating pipe 302 is connected to the plant heating radiator pipe to transport the hot water in the hot water tank 301 to the plant heating radiator 303;

[0059] A factory circulating water pump 304 is installed on the factory heating pipe 302 .

[0060] The plant heating component 3 of this embodiment uses the hot water tank 301 to receive the hot water after the heat exchange of the heat exchanger 2. The water is heated to 70° C. in the heat exchanger 2 and then transported to the hot water tank 301. The hot water is stored in the hot water tank 301 and kept at 65° C. Then the plant circulating water pump 305 is controlled by frequency conversion to transport the hot water in the hot water tank 301 to the plant heating radiator 303 through the plant heating pipeline 302, and finally the plant heating is realized.

[0061] Secondly, the second heat-using area of ​​this embodiment is the living area heating component 4. Specifically, the living heating component 4 of this embodiment includes:

[0062] A warm water tank 401 connected to the hot water tank 301 through a pipeline; and

[0063] A living area heating pipe 402 connected to the warm water tank 401, and the living area heating pipe 402 is connected to the living area floor heating pipe 403 to transport the warm water in the warm water tank 401 to the living area floor heating pipe 403;

[0064] A living area circulating water pump 405 is installed on the living area heating pipe 403.

[0065] The warm water tank 401 of the living area heating assembly 4 of this embodiment is connected to the hot water tank 301 through a pipeline, and the water temperature in the warm water tank 401 is controlled at 45° C. Then the living area circulating water pump 405 is controlled to transport water to the living area floor heating pipeline 403 to achieve heating of the living area.

[0066] More preferably, the factory heating radiator 303 of this embodiment is connected to the warm water tank 401 through the first return pipe 304 to return the water after heat exchange to the warm water tank 401;

[0067] The floor heating in the living area is connected to the warm water tank 401 through the second return pipe 404 to return the water after heat exchange to the warm water tank 401.

[0068] In this embodiment, both groups of terminal heat components are provided with return pipes to return water to the warm water tank 401 for recycling.

[0069] Preferably, the warm water tank 401 of this embodiment is connected to the shell side of the heat exchanger 2 through the delivery water pump 6 to deliver the water to be heated to the heat exchanger 2. The water in the warm water tank 401 is returned to the heat exchanger 2 through the delivery water pump 6 and is heated by heat exchange, and then returns to the hot water tank 301 to provide heat for the terminal system.

[0070] The water replenishment device is a water replenishment pump 5 connected to the warm water tank 401. According to actual use, the water replenishment pump 5 of the present embodiment adopts the water replenishment pump 5 of the plant air compressor station.

[0071] The heat exchanger 2 is arranged between the two roasting furnaces.

[0072] In the above technical scheme, the utility model provides a roasting furnace waste flue gas waste heat recycling system, which has the following beneficial effects:

[0073] The waste heat recycling system of the utility model collects waste flue gas and uses the heat exchanger 2 to exchange heat with water in the factory area and living area. The waste heat of the waste flue gas is reasonably utilized to supplement the heat energy of the production process and improve production efficiency. The system reduces energy consumption, and the utilization of waste heat from the waste flue gas can reduce dependence on external energy.

[0074] The waste heat recycling system of the utility model can reduce exhaust gas emission and reduce pollution to the environment.

[0075] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A system for recycling waste heat from waste flue gas from a roasting furnace, characterized in that: The system includes: Waste flue gas collection assembly (1); a heat exchanger (2) connected to the waste flue gas collection component (1), wherein the heat exchanger (2) is a heat pipe heat exchanger, and the waste flue gas collection component (1) transports the collected waste flue gas into the heat exchanger (2); and A terminal system connected to the heat exchanger (2); The terminal system comprises a factory heating component (3), a domestic heating component (4) and water replenishment equipment; The terminal system absorbs the heat of the waste flue gas by means of heat exchange through the heat exchanger (2).

2. A roasting furnace waste flue gas waste heat recycling system according to claim 1, characterized in that: The waste flue gas collecting assembly (1) comprises: A plurality of air collecting pipes (101); and A hot air main pipe (102) connected to the plurality of air collecting pipes (101); An induced draft fan (103) is provided at the other end of the heat exchanger (2); The air collecting pipe (101) collects the waste flue gas and collects the waste flue gas into the hot air main pipe (102), and guides the waste flue gas into the heat pipe of the heat exchanger (2) through the induced draft fan (103).

3. The system for recycling waste heat from waste flue gas from a roasting furnace according to claim 2, characterized in that: The plant heating component (3) comprises: a hot water tank (301) connected to the shell side of the heat exchanger (2); and A plant heating pipe (302) connected to the hot water tank (301), wherein the plant heating pipe (302) is connected to a plant heating radiator pipe to transport hot water in the hot water tank (301) to the plant heating radiator; The plant area heating pipeline (302) is provided with a plant area circulating water pump (305).

4. A roasting furnace waste flue gas waste heat recycling system according to claim 3, characterized in that: The domestic heating component (4) comprises: a warm water tank (401) connected to the hot water tank (301) via a pipeline; and A living area heating pipe (402) connected to the warm water tank (401), wherein the living area heating pipe (402) is connected to a living area floor heating pipe (403) so as to transport the warm water in the warm water tank (401) to the living area floor heating pipe (403); The living area heating pipe (402) is provided with a living area circulating water pump (405).

5. A roasting furnace waste flue gas waste heat recycling system according to claim 4, characterized in that: The factory heating radiator (303) is connected to the warm water tank (401) through a first return pipe (304) to return the water after heat exchange to the warm water tank (401); The living area floor heating pipe (403) is connected to the warm water tank (401) through a second return pipe (404) to return the water after heat exchange to the warm water tank (401).

6. The system for recycling waste heat from waste flue gas from a roasting furnace according to claim 4, characterized in that: The warm water tank (401) is connected to the shell side of the heat exchanger (2) via a water delivery pump (6) to deliver the water to be heated into the heat exchanger (2).

7. The system for recycling waste heat from waste flue gas from a roasting furnace according to claim 4, characterized in that: The water replenishment device is a water replenishment pump (5) connected to the warm water tank (401).

8. The system for recycling waste heat from waste flue gas from a roasting furnace according to claim 7, characterized in that: The water replenishment pump (5) is a water replenishment pump (5) of a factory air compressor station.

9. The system for recycling waste heat from waste flue gas from a roasting furnace according to claim 2, characterized in that: The heat exchanger (2) is arranged between two roasting furnaces.

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