CN216010791U

CN216010791U - Cement high-temperature clinker waste heat steam boiler

Info

Publication number: CN216010791U
Application number: CN202121749136.4U
Authority: CN
Inventors: 陈保主; 郝月锋; 张志�; 孙宇鹏; 汤文艺
Original assignee: China United Cement Xingtai Co ltd
Current assignee: China United Cement Xingtai Co ltd
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2022-03-11
Anticipated expiration: 2031-07-29

Abstract

The utility model relates to the technical field of cement clinker production, in particular to a cement high-temperature clinker waste heat steam boiler. The clinker aggregate power generation device comprises a clinker aggregate feeding port arranged above the right side of a water tank, a clinker aggregate discharging port arranged below the left side of the water tank, a packing auger pushing piece arranged on the periphery of a roller and used for pushing materials to move leftwards, a hollow interlayer is arranged in the roller, clinker aggregates heat the water tank on the outer wall in the conveying process and heat the hollow interlayer in the roller, water generates steam under the action of high temperature, and power is generated through the steam; the waste heat recovery device is designed to exchange heat for the clinker through an inner-outer double-layer structure in the clinker conveying process, so that the heat exchange efficiency of the clinker is greatly improved, the power generation capacity is greatly improved, and the effects of energy conservation and environmental protection are achieved; and the clinker is cooled by water cooling, so that the clinker cooling speed is high.

Description

Cement high-temperature clinker waste heat steam boiler

Technical Field

The utility model relates to the technical field of cement clinker production, in particular to a cement high-temperature clinker waste heat steam boiler.

Background

The traditional cement clinker heat dissipation is realized by air cooling, the outer wall at the rear part of the rotary kiln is directly blown back by a fan, then the materials are cooled by air cooling after coming out, and the temperature of the air around the rotary kiln is very high, so that the clinker is cooled by hot air very slowly, the temperature of the air can be reduced greatly when the clinker is blown by the air, the power generation efficiency is reduced when the hot air is converted into steam, the clinker heat is wasted, and the energy is not saved and the environment is protected. The temperature of the cement clinker in the rotary kiln is about 1600 hundred ℃, the heat of the high-temperature clinker is directly converted into steam for power generation, the generated energy is greatly increased, and the cooling speed of the cement clinker is accelerated.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide a cement high-temperature clinker waste heat steam boiler aiming at the technical defects, which comprises a clinker feeding hole arranged above the right side of a water tank, a clinker discharging hole arranged below the left side of the water tank, a packing auger pushing sheet arranged on the periphery of a roller and used for pushing materials to move leftwards, a hollow interlayer arranged in the roller, wherein clinker heats the water tank on the outer wall in the conveying process and heats the hollow interlayer in the roller at the same time, water generates steam under the high-temperature action and generates electricity through the steam; the waste heat recovery device is designed to exchange heat for the clinker through an inner-outer double-layer structure in the clinker conveying process, so that the heat exchange efficiency of the clinker is greatly improved, the power generation capacity is greatly improved, and the effects of energy conservation and environmental protection are achieved; and the clinker is cooled by water cooling, so that the clinker cooling speed is high.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows: the device comprises a base, a speed reducing motor and a waste heat recovery device; both sides of the top of the base are provided with bearings with seats; one side of the bearing with the seat is provided with a driving seat, and the speed reducing motor is arranged on one side of the driving seat; the waste heat recovery device is arranged at the top of the base; the waste heat recovery device comprises a roller, a water tank and a steam tank; a hollow shaft is arranged at two ends of the roller; the hollow shaft is arranged on the bearing with the seat and is driven to rotate by the speed reducing motor; the water tank is wrapped outside the roller and fixed with the base; the bottom of the water tank is provided with a water inlet; the water tank top is provided with the gas collection storehouse, the steam drum sets up at the gas collection storehouse top.

The technical scheme is further optimized, a clinker feeding hole is formed in the upper portion of the right side of the water tank, and a clinker discharging hole is formed in the lower portion of the left side of the water tank; and the periphery of the roller is provided with a packing auger pushing sheet for pushing the material to move leftwards.

Further optimizing the technical scheme, a hollow interlayer is arranged in the roller; and one side of the hollow shaft is connected with a rotary joint, and the hollow interlayer, the hollow shaft and the rotary joint are communicated.

Further optimize this technical scheme, water tank right side below be connected with the outlet pipe, the rotary joint intercommunication on the outlet pipe other end and right side.

Further optimize this technical scheme, gas collection storehouse left side be provided with the blast pipe, the blast pipe other end and left rotary joint intercommunication.

Compared with the prior art, the utility model has the following advantages:

1. the clinker heats the water tank on the outer wall in the conveying process, and simultaneously heats the hollow interlayer in the clinker, and the water generates steam under the action of high temperature, so that power is generated through the steam.

2. The waste heat recovery device is designed to exchange heat for the clinker through an inner-outer double-layer structure in the clinker conveying process, the heat exchange efficiency of the clinker is greatly improved, the generated energy is greatly improved, and therefore the effects of energy conservation and environmental protection are achieved.

3. And the clinker is cooled by water cooling, so that the clinker cooling speed is high.

Drawings

Fig. 1 is a three-dimensional structure diagram of a cement high-temperature clinker waste heat steam boiler.

FIG. 2 is a structural diagram of a waste heat recovery device of a cement high-temperature clinker waste heat steam boiler.

FIG. 3 is a schematic view of the installation position of the roller of the cement high-temperature clinker waste heat steam boiler.

FIG. 4 is a partial sectional view showing the installation position structure of the water outlet pipe of the cement high temperature clinker waste heat steam boiler.

FIG. 5 is a partial sectional view showing the internal structure of a drum of a cement clinker waste heat steam boiler.

In the figure: 1. a base; 101. a pedestal bearing; 102. a driving seat; 2. a reduction motor; 3. a waste heat recovery device; 301. a drum; 302. a water tank; 303. a steam tank; 304. a hollow shaft; 305. a water inlet; 306. a gas collecting bin; 307. a clinker feeding port; 308. a clinker discharging port; 309. pushing a sheet by the auger; 310. a hollow interlayer; 311. a rotary joint; 312. a water outlet pipe; 313. and (4) exhausting the gas.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

The first embodiment is as follows: referring to fig. 1-5, a cement high temperature clinker waste heat steam boiler is characterized in that: the device comprises a base 1, a speed reducing motor 2 and a waste heat recovery device 3; both sides of the top of the base 1 are provided with bearings 101 with seats; a driving seat 102 is arranged on one side of the bearing with seat 101, and the reducing motor 2 is arranged on one side of the driving seat 102; the waste heat recovery device 3 is arranged at the top of the base 1; the waste heat recovery device 3 comprises a roller 301, a water tank 302 and a steam tank 303; a hollow shaft 304 is arranged at two ends of the roller 301; the hollow shaft 304 is arranged on the bearing with the seat 101 and is driven to rotate by the speed reducing motor 2; the water tank 302 is wrapped outside the roller 301 and is fixed with the base 1; the bottom of the water tank 302 is provided with a water inlet 305; the top of the water tank 302 is provided with a gas collecting bin 306, and the steam tank 303 is arranged at the top of the gas collecting bin 306.

Preferably, a clinker feeding hole 307 is arranged above the right side of the water tank 302, and a clinker discharging hole 308 is arranged below the left side; an auger pushing piece 309 is arranged on the periphery of the roller 301 and used for pushing the materials to move leftwards.

Preferably, a hollow interlayer 310 is arranged inside the roller 301; one side of the hollow shaft 304 is connected with a rotary joint 311, and the hollow interlayer 310, the hollow shaft 304 and the rotary joint 311 are communicated.

Preferably, a water outlet pipe 312 is connected to the lower part of the right side of the water tank 302, and the other end of the water outlet pipe 312 is communicated with a right rotary joint 311.

Preferably, an exhaust pipe 313 is arranged on the left side of the gas collecting bin 306, and the other end of the exhaust pipe 313 is communicated with the left rotary joint 311.

When in use, as shown in fig. 1-5, the clinker which is calcined at high temperature in the rotary kiln enters from the clinker inlet 307, the speed reduction motor 2 drives the roller 301 to rotate when in operation, and the auger pushing piece 309 is arranged on the periphery of the roller 301 and used for pushing the material to move leftwards, so that when the roller 301 rotates, the clinker is pushed to move leftwards along the inside of the water tank 302 and is finally discharged from the clinker outlet 308 at the bottom of the left side of the water tank 302.

Cold water is added from the inlet, the cold water directly enters the water tank 302, heat exchange is carried out between the high-temperature clinker and the cold water in the water tank 302 due to the fact that the inner wall of the water tank 302 is directly contacted with the clinker, the cold water in the water tank 302 is primarily heated, and meanwhile, the clinker is cooled.

Because the hollow interlayer 310 is arranged in the roller 301, one side of the hollow shaft 304 is connected with the rotary joint 311, the hollow interlayer 310, the hollow shaft 304 and the rotary joint 311 are communicated, the lower part of the right side of the water tank 302 is connected with the water outlet pipe 312, and the other end of the water outlet pipe 312 is communicated with the rotary joint 311 on the right side, the primarily heated cold water can enter the rotary joint 311 on the right side through the water outlet pipe 312, and then enter the roller 301 through the rotary joint on the right side and the hollow shaft 304 on the right side; a plurality of space rings are arranged in the hollow interlayer 310, and through holes are formed in the space rings, so that water and steam can be guaranteed to pass through.

The cold water and the clinker which are located in the hollow interlayer 310 for primary heating carry out secondary heat exchange, so that the cold water can be heated secondarily, and the cold water can generate steam after being heated at high temperature, therefore, the left side of the gas collecting bin 306 is provided with the exhaust pipe 313, the other end of the exhaust pipe 313 is communicated with the left rotary joint 311, the steam can enter the gas collecting bin 306 through the hollow interlayer 310, the left hollow shaft 304 and the exhaust pipe 313, and finally enters the steam tank 303 through the gas collecting bin 306, and the high-temperature steam can be used for power generation.

In conclusion, the clinker heats the water tank 302 on the outer wall in the conveying process, and simultaneously heats the hollow interlayer 310 inside, the water generates steam under the action of high temperature, power is generated through the steam, the waste heat recovery device 3 is designed to exchange heat for the clinker through an inner-layer structure and an outer-layer structure in the conveying process of the clinker, the heat exchange efficiency of the clinker is greatly improved, the power generation capacity is greatly improved, the energy-saving and environment-friendly effects are achieved, the clinker is cooled through water cooling, and the clinker cooling speed is high.

The control mode of the utility model is automatically controlled by the controller, the control circuit of the controller can be realized by simple programming of a person skilled in the art, the utility model belongs to the common knowledge in the field, and the utility model is mainly used for protecting mechanical devices, so the control mode and the circuit connection are not explained in detail in the utility model.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the utility model and are not to be construed as limiting the utility model. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. A kind of cement high-temperature grog exhaust-heat steam boiler, characterized by that: comprises a base (1), a speed reducing motor (2) and a waste heat recovery device (3); both sides of the top of the base (1) are provided with bearings (101) with seats; a driving seat (102) is arranged on one side of the bearing with seat (101), and the speed reducing motor (2) is arranged on one side of the driving seat (102); the waste heat recovery device (3) is arranged at the top of the base (1); the waste heat recovery device (3) comprises a roller (301), a water tank (302) and a steam tank (303); a hollow shaft (304) is arranged at two ends of the roller (301); the hollow shaft (304) is arranged on the bearing (101) with the seat and is driven to rotate by the speed reducing motor (2); the water tank (302) is wrapped outside the roller (301) and is fixed with the base (1); a water inlet (305) is formed in the bottom of the water tank (302); the top of the water tank (302) is provided with a gas collecting bin (306), and the steam tank (303) is arranged at the top of the gas collecting bin (306).

2. A cement high temperature clinker waste heat steam boiler according to claim 1, characterized in that: a clinker feeding hole (307) is formed in the upper portion of the right side of the water tank (302), and a clinker discharging hole (308) is formed in the lower portion of the left side of the water tank; and an auger pushing sheet (309) is arranged on the periphery of the roller (301) and used for pushing the material to move leftwards.

3. A cement high temperature clinker waste heat steam boiler according to claim 1, characterized in that: a hollow interlayer (310) is arranged in the roller (301); and one side of the hollow shaft (304) is connected with a rotary joint (311), and the hollow interlayer (310), the hollow shaft (304) and the rotary joint (311) are communicated.

4. A cement high temperature clinker waste heat steam boiler according to claim 3, characterized in that: the water tank (302) is connected with a water outlet pipe (312) below the right side, and the other end of the water outlet pipe (312) is communicated with a rotary joint (311) on the right side.

5. A cement high temperature clinker waste heat steam boiler according to claim 3, characterized in that: an exhaust pipe (313) is arranged on the left side of the gas collecting bin (306), and the other end of the exhaust pipe (313) is communicated with a rotary joint (311) on the left side.