Device for utilizing heat energy of cooling water of calcining furnace

Abstract

The utility model provides calcining furnace cooling water heat energy utilization equipment, which belongs to the technical field of calcining furnace heat energy recycling equipment, and comprises cooling water circulation equipment, a steam boiler, a steam unit and a condenser which are sequentially communicated, a second communicating pipeline is arranged between the steam boiler and the steam unit, a third communicating pipeline is arranged between the steam unit and the condenser, and a fourth communicating pipeline and a cooling circulation assembly are arranged between the condenser and the cooling water circulation equipment. Cooling water is drained into the steam boiler and then is heated by the steam boiler, so that high-pressure steam is generated to be supplied to the steam unit, the steam unit operates to generate electric energy for standby use, and waste gas passing through the steam unit flows through the condenser to be cooled and recycled and flows back into the circulating water tank. And further mixing with external supplied water and then carrying out circulating cooling.

Description

Technical Field

[0001] The utility model relates to the technical field of heat energy recovery and utilization equipment for calcining furnaces, and particularly to heat energy utilization equipment for cooling water of calcining furnaces. Background Technique

[0002] When processing calcined coke, cooling and temperature reduction is a very important step. It is necessary to quickly reduce its high-temperature state to prevent further oxidation. Existing cooling and temperature reduction mostly adopt the method of indirect cooling with circulating cooling water to reduce the temperature. While effectively reducing the material temperature, it avoids the explosion risk and material property change that may be caused by direct water cooling.

[0003] Indirect water cooling with circulating cooling water can also take away a large amount of waste heat for recovery and utilization. In the prior art, the recovery and utilization of waste heat from circulating cooling water mostly involves slightly processing it into domestic water, such as washing water, etc., and the heat energy recovery utilization rate is relatively low. Therefore, a heat energy utilization device for cooling water of a calcining furnace is proposed to solve this problem. Content of the Utility Model

[0004] In view of this, the utility model provides a heat energy utilization device for cooling water of a calcining furnace. The cooling water can be diverted into a steam boiler and then heated by the steam boiler to generate high-pressure steam for a steam unit. The operation of the steam unit can generate electric energy for reserve use. The waste gas after passing through the steam unit then flows through a condenser for cooling recovery and returns to the circulation water tank, and is further mixed with external water supply and then circulated for cooling.

[0005] To solve the above technical problems, the utility model provides a heat energy utilization device for cooling water of a calcining furnace, which includes a cooling water circulation device, a steam boiler, a steam unit, and a condenser connected in sequence. A first connecting pipeline is provided between the cooling water circulation device and the steam boiler, a second connecting pipeline is provided between the steam boiler and the steam unit, a third connecting pipeline is provided between the steam unit and the condenser, and a fourth connecting pipeline and a cooling circulation component are provided between the condenser and the cooling water circulation device.

[0006] The cooling water circulation device includes a cooling jacket, and a water inlet and a water outlet are provided on the cooling jacket. A water inlet pipe is connected to the water inlet, the other end of the water inlet pipe is connected to a water pump, the water pump is also connected to a pumping pipeline, the other end of the pumping pipeline communicates with a circulation water tank arranged at the lower part, the fourth connecting pipeline is also communicated with the circulation water tank, and an external connection port is further provided on the circulation water tank.

[0007] A feed inlet and a steam outlet are provided on the steam boiler, and the feed inlet is connected to the first connecting pipeline.

[0008] A steam inlet and an exhaust gas outlet are provided on the steam unit, and a second connecting pipeline is provided between the steam inlet and the steam outlet.

[0009] The cooling cycle assembly includes a circulation pump disposed in the circulation water tank. A water supply pipe and a return pipe are respectively connected to the circulation pump. The water supply pipe is connected to the water supply end disposed on the condenser, and the return pipe is communicated with the return end disposed on the condenser.

[0010] The condenser is further provided with a first interface and a second interface. A third communication pipeline is provided between the first interface and the exhaust gas outlet.

[0011] One end of the fourth communication pipeline is connected to the second interface, and the other end is communicated into the circulation water tank.

[0012] The beneficial effects of the above technical solutions of the present utility model are as follows:

[0013] 1. The cooling water is diverted into the steam boiler and then heated by the steam boiler to generate high-pressure steam for the steam unit. The steam unit can operate to generate electric energy for reserve use. The exhaust gas after passing through the steam unit then flows through the condenser for cooling and recovery and returns to the circulation water tank, and is further mixed with external water supply and then circulated for cooling.

[0014] 2. A circulation pump is disposed in the circulation water tank of the cooling water circulation device. It is connected to the condenser through the water supply pipe and the return pipe, and thus the cooling water in the circulation water tank can be fully recycled.

[0015] 3. The exhaust gas of the steam unit enters the third communication pipeline through the exhaust gas outlet and enters the condenser to be condensed. After condensation, it returns to the circulation water tank and is reused after being mixed with external water supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main structure of the equipment for utilizing the heat energy of the cooling water of the calciner of the present utility model;

[0017] Figure 2 It is the front view of the present utility model;

[0018] Figure 3 It is the rear sectional view of the present utility model.

[0019] Explanation of the reference numerals: 1. cooling water circulation equipment; 11. cooling jacket; 111. water inlet; 112. water outlet; 12. water inlet pipe; 13. water pump; 14. pumping pipe; 15. circulating water tank; 151. external pipe port; 2. steam boiler; 21. feed port; 22. steam outlet; 3. steam unit; 31. steam inlet; 32. exhaust gas outlet; 4. condenser; 41. water supply end; 42. reflux end; 43. first interface; 44. second interface; 5. first connecting pipeline; 6. second connecting pipeline; 7. third connecting pipeline; 8. fourth connecting pipeline; 9. cooling circulation component; 91. circulating pump; 92. water supply pipe; 93. reflux pipe. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the following will be combined with the appended drawings of the embodiment of the utility model. Figures 1-3 , the technical scheme of the embodiment of the utility model is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0021] like Figures 1-3 As shown:

[0022] The present embodiment provides a calcining furnace cooling water heat energy utilization device, comprising a cooling water circulation device 1, a steam boiler 2, a steam unit 3 and a condenser 4 which are connected in sequence, wherein a first connecting pipe 5 is provided between the cooling water circulation device 1 and the steam boiler 2, a second connecting pipe 6 is provided between the steam boiler 2 and the steam unit 3, a third connecting pipe 7 is provided between the steam unit 3 and the condenser 4, and a fourth connecting pipe 8 and a cooling circulation component 9 are provided between the condenser 4 and the cooling water circulation device 1.

[0023] When in use, the cooling water is led to the steam boiler 2, and then heated by the steam boiler 2, thereby generating high-pressure steam to be supplied to the steam unit 3. The operation of the steam unit 3 can generate electricity for reserve use. The exhaust gas after passing through the steam unit 3 flows through the condenser 4 for cooling and recovery and flows back to the circulating water tank 15, and is further mixed with the external water supply before circulating cooling.

[0024] like Figure 2 , 3As shown in the figure, the cooling water circulation device 1 includes a cooling jacket 11, on which a water inlet 111 and a water outlet 112 are provided. A water inlet pipe 12 is connected to the water inlet 111, and the other end of the water inlet pipe 12 is connected to a water pump 13. The water pump 13 is also connected to a pumping pipe 14, and the other end of the pumping pipe 14 communicates with a circulation water tank 15 arranged at the lower part. The fourth communication pipeline 8 is also communicated with the circulation water tank 15. In addition, an external connection port 151 is provided on the circulation water tank 15.

[0025] As Figure 1 、 2 shown in the figure, a steam boiler 2 is provided with a feed inlet 21 and a steam outlet 22, and the feed inlet 21 is connected to the first communication pipeline 5.

[0026] As Figure 2 、 3 shown in the figure, a steam unit 3 is provided with a steam inlet 31 and an exhaust gas outlet 32, and a second communication pipeline 6 is provided between the steam inlet 31 and the steam outlet 22.

[0027] As Figure 3 shown in the figure, the cooling circulation assembly 9 includes a circulation pump 91 arranged in the circulation water tank 15. A water supply pipe 92 and a return pipe 93 are respectively connected to the circulation pump 91. The water supply pipe 92 is connected to the water supply end 41 arranged on the condenser 4, and the return pipe 93 is communicated with the return end 42 arranged on the condenser 4. The condenser 4 is also provided with a first interface 43 and a second interface 44. A third communication pipeline 7 is provided between the first interface 43 and the exhaust gas outlet 32. The exhaust gas of the steam unit 3 enters the third communication pipeline 7 through the exhaust gas outlet 32 and enters the condenser 4 to be condensed. After condensation, it flows back into the circulation water tank 15, is mixed with external water supply and then is used again. One end of the fourth communication pipeline is connected to the second interface 44 and the other end communicates with the inside of the circulation water tank 15.

[0028] In addition, it should be noted that in the description of the present utility model, unless otherwise clearly defined and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0029] The above is the preferred embodiment of the present utility model. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle described in the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. Calcining furnace cooling water heat energy utilization equipment, characterized by: The invention comprises a cooling water circulation device (1), a steam boiler (2), a steam unit (3) and a condenser (4) which are connected in sequence, wherein a first connecting pipe (5) is provided between the cooling water circulation device (1) and the steam boiler (2), a second connecting pipe (6) is provided between the steam boiler (2) and the steam unit (3), a third connecting pipe (7) is provided between the steam unit (3) and the condenser (4), and a fourth connecting pipe (8) and a cooling circulation component (9) are provided between the condenser (4) and the cooling water circulation device (1).

2. The calcining furnace cooling water heat energy utilization device according to claim 1, characterized in that: The cooling water circulation device (1) comprises a cooling jacket (11), the cooling jacket (11) is provided with a water inlet pipe (111) and a water outlet pipe (112), the water inlet pipe (111) is connected to a water inlet pipe (12), the other end of the water inlet pipe (12) is connected to a water pump (13), the water pump (13) is also connected to a pumping pipe (14), the other end of the pumping pipe (14) is connected to a circulating water tank (15) arranged at the bottom, the fourth connecting pipe (8) is also connected to the circulating water tank (15), and the circulating water tank (15) is also provided with an external pipe port (151).

3. The calcining furnace cooling water heat energy utilization device according to claim 2, characterized in that: The steam boiler (2) is provided with a feed inlet (21) and a steam outlet (22), wherein the feed inlet (21) is connected to the first connecting pipeline (5).

4. The calcining furnace cooling water heat energy utilization device according to claim 3, characterized in that: The steam unit (3) is provided with a steam inlet (31) and an exhaust gas outlet (32), and the second connecting pipeline (6) is provided between the steam inlet (31) and the steam outlet (22).

5. The calcining furnace cooling water heat energy utilization device according to claim 4, characterized in that: The cooling circulation component (9) comprises a circulation pump (91) arranged in the circulation water tank (15), and the circulation pump (91) is respectively connected to a water supply pipe (92) and a return pipe (93), wherein the water supply pipe (92) is connected to a water supply end (41) arranged on the condenser (4), and the return pipe (93) is connected to a return end (42) arranged on the condenser (4).

6. The calcining furnace cooling water heat energy utilization device according to claim 5, characterized in that: The condenser (4) is also provided with a first interface (43) and a second interface (44), wherein the third connecting pipeline (7) is provided between the first interface (43) and the exhaust gas outlet (32).

7. The calcining furnace cooling water heat energy utilization device according to claim 6, characterized in that: One end of the fourth connecting pipe (8) is connected to the second interface (44), and the other end is connected to the circulating water tank (15).

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