Clinker waste heat recycling structure

Abstract

The utility model relates to the technical field of waste heat recovery, and discloses a clinker waste heat recycling structure. The clinker waste heat recycling structure comprises a device assembly, an internal structure assembly is installed in the device assembly, a sealing strip is installed at the lower end of the internal structure assembly, an air inflation beam is installed at the lower end of the sealing strip, an air chamber is installed at the lower end of the air inflation beam, and a moving groove is formed in the lower end of the interior of the air chamber. A movable sealing plate is mounted at the lower end of the moving groove, a fan assembly is mounted on the left side of the internal structure assembly, a concentration box is mounted at the upper end of the fan assembly, a shell is mounted on the left side of the concentration box, and an electric pressurizing plate is mounted in the shell, so that the power consumption of a follow-up fan is effectively prevented from being increased; the clinker takes away a large amount of heat, so that heat energy loss is caused, the generating capacity of each ton of clinker is reduced, energy is wasted, and the clinker conveyor hopper is seriously deformed due to high temperature, and the technical problems are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat recovery, in particular to a clinker waste heat recovery and utilization structure. Background Art

[0002] The clinker temperature out of the grate cooler crusher in the firing workshop is about 180℃, which is much higher than the group's requirement that the clinker outlet grate cooler should be ≤110℃. This causes the clinker crusher bearing temperature to operate at 65-70℃ for a long time. Two 110KW cooling fans must be used to force it to cool down all year round, which increases power consumption. The secondary air temperature at the kiln head is ≤1000℃, lower than the expected value of 1150℃. The tertiary air temperature at the kiln tail is maintained at around 750℃, lower than the ideal value of 950℃, which is not conducive to the suspended preheating of the raw meal powder in the preheater, affects the calcination quality of the clinker in the rotary kiln, and wastes 3Kg / t of standard coal.

[0003] The existing referenceable Chinese utility model patent with announcement number: CN201463615U discloses a device for recovering and utilizing waste heat of clinker in an ore burning kiln, which belongs to the field of ore raw material production equipment. The energy-saving device is composed of a blower, an air inlet pipe, a heat exchange coil, an air outlet pipe and a gas burner. The heat exchange coil is a multi-layer coil, which is arranged in a clinker bin. The lower port of the heat exchange coil is connected to the blower through the air inlet pipe, the upper port of the heat exchange coil is connected to the lower port of the air outlet pipe, the upper port of the air outlet pipe is connected to the gas burner, and the gas burner is connected to the combustion chamber. The design fully recovers and utilizes the waste heat of the high-temperature clinker in the kiln through the heat exchange coil, increases the temperature of the combustion-supporting air, enhances the injection power of the gas, and makes the gas and the heated primary combustion-supporting air evenly mixed and burned in the combustion chamber. Not only is the combustion temperature high and the heating speed fast, but the combustion flame is also evenly dispersed, which improves the gas use efficiency and saves more than 5% energy than the traditional roaster. In addition, the pollutant emissions are greatly reduced, which is beneficial to the atmosphere and environmental protection.

[0004] Based on the search of the above patents and in combination with the equipment in the prior art, it was found that the clinker temperature of the grate cooler and crusher in the firing workshop is about 180°C, which is much higher than the clinker specified by the group. The bearing temperature of the clinker crusher is kept at 65-70°C for a long time. Two 110KW cooling fans must be used to force it to cool down all year round, which increases the power consumption of subsequent fans. The clinker takes away a lot of heat, which not only causes heat energy loss, reduces the power generation per ton of clinker, and wastes energy, but also causes serious deformation of the clinker conveyor hopper due to high temperature. The existence of these problems affects the use of the device. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a clinker waste heat recovery and utilization structure, which has the advantages of effectively preventing subsequent fans from increasing power consumption; the clinker takes away a large amount of heat, which not only causes heat energy loss, reduces the power generation per ton of clinker, and wastes energy, but also causes serious deformation of the clinker conveyor hopper due to high temperature, thereby solving the above-mentioned technical problems.

[0007] Technical Solution

[0008] To achieve the above object, the utility model provides the following technical solutions: a clinker waste heat recovery and utilization structure, comprising a device component, wherein an internal structural component for drying and cooling materials is installed inside the device component, and a fan component for wind conveying the entire device is installed on the left side of the internal structural component;

[0009] A sealing strip is installed at the lower end of the internal structure component, an inflatable beam is installed at the lower end of the sealing strip, and an air chamber is installed at the lower end of the inflatable beam, a movable groove is installed at the lower end of the air chamber, and a movable sealing plate is installed at the lower end of the movable groove, and the movable sealing plate is convenient for dividing the air chamber;

[0010] A centralizing box is installed at the upper end of the fan assembly, and a shell is installed on the left side of the centralizing box. An electric power boosting plate is installed inside the shell, and a high-power impeller is installed at the front end of the electric power boosting plate. The high-power impeller is convenient for providing rotational wind force for the device.

[0011] As an optimal technical solution of the utility model, a body is installed on the upper end of the device component, and a connecting port is installed on the left side of the upper end of the body, an inlet is installed on the upper end of the connecting port, an air outlet is installed on the upper end of the body, and a pouring port is installed on the right side of the body, and the pouring port discharges the cooled material.

[0012] As a preferred technical solution of the utility model, a grate plate is installed at the upper end of the internal structural component, and the grate plate receives the material at the upper end and facilitates the discharge of wind force.

[0013] As a preferred technical solution of the utility model, a delivery pipe is installed at the upper end of the fan assembly, and a connecting pipe is installed on the left side of the delivery pipe. The connecting pipe is connected to the concentration box to facilitate centralized collection of wind power.

[0014] As a preferred technical solution of the utility model, the internal structure component is installed inside the body of the internal device component, and the fan component is installed on the left side of the wind chamber in the internal structure component.

[0015] As a preferred technical solution of the utility model, the sealing strip is a resin strip structure seal, a moving block is installed at the lower end of the movable sealing plate, and the movable sealing plate is a high-temperature resistant silicone cloth structure.

[0016] As the preferred technical solution of the utility model, the conveying pipe is connected and installed at the lower end of the inflatable beam, and the outer shell and the internal structure constitute a fan body. There are three fan bodies, and the air door opening of each fan is adjusted to 100%.

[0017] Compared with the prior art, the utility model provides a clinker waste heat recovery and utilization structure with the following beneficial effects:

[0018] 1. The utility model arranges internal structural components and fan components. In the internal structural components, the asbestos rope seal between the inflatable beam and the grate plate is replaced by a resin strip seal, and the asbestos plate seal of each air chamber is replaced by a movable sealing sleeve seal made of high-temperature resistant silicone cloth. In the fan component, the three high-pressure fan impellers of a grate cooler are modified to increase the pressure and air volume to ensure the work of the fan. Through the research and development of the grate plate gap and the fan air duct of the grate cooler, the heat of the grate cooler is efficiently recovered and utilized, the power generation per ton of clinker is increased by more than 3Kwh / t, two cooling fans with a power of 110KW are reduced, and the comprehensive unit power consumption per ton of clinker is saved by more than 4Kwh / t. The secondary and tertiary air temperatures are greatly improved, and the secondary air temperature is increased from less than 1000°C to about 1150°C, and the tertiary air temperature is increased from about 750°C to about 950°C. The temperature of clinker out of the grate cooler is generally reduced by about 80℃, the "snowman" phenomenon in the grate cooler disappears, the clinker granulation is uniform, the granulation condition is significantly improved, the daily clinker output is increased by 200 tons, the clinker strength is increased by 2MPa, the standard clinker consistency is reduced by 2%, and the quality is significantly improved. The economic benefits of more than 4 million yuan are achieved each year, which is in line with the guiding spirit of energy conservation and consumption reduction of the country, industry and enterprises. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structural device components of the utility model;

[0021] Figure 3 It is a schematic diagram of the internal structural components of the utility model structure;

[0022] Figure 4 This is a schematic diagram of the fan assembly of the utility model structure;

[0023] Among them: 1. Device components; 101. Machine body; 102. Connection port; 103. Inlet; 104. Air outlet; 105. Pour outlet; 2. Internal structure components; 201. Grate plate; 202. Sealing strip; 203. Inflatable beam; 204. Wind chamber; 205. Moving groove; 206. Movable sealing plate; 3. Fan component; 301. Delivery pipe; 302. Connecting pipe; 303. Centralizing box; 304. Casing; 305. Electric pressure plate; 306. High-power impeller. DETAILED DESCRIPTION

[0024] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0025] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" 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 a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] See also Figure 1 - Figure 4 In this embodiment, the clinker waste heat recovery and utilization structure includes: a device component 1, an internal structure component 2 is installed inside the device component 1, a sealing strip 202 is installed at the lower end of the internal structure component 2, an inflatable beam 203 is installed at the lower end of the sealing strip 202, and a wind chamber 204 is installed at the lower end of the inflatable beam 203, a movable groove 205 is installed at the lower end of the wind chamber 204, and a movable sealing plate 206 is installed at the lower end of the movable groove 205, a fan component 3 is installed on the left side of the internal structure component 2, a concentration box 303 is installed at the upper end of the fan component 3, and a shell 304 is installed on the left side of the concentration box 303, an electric power pressurization plate 305 is installed inside the shell 304, and a high-power impeller 306 is installed at the front end of the electric power pressurization plate 305, the internal structure component 2 is installed inside the body 101 in the internal device component 1, and the fan component 3 is installed on the left side of the wind chamber 204 in the internal structure component 2.

[0028] Through the above structure: the device component 1 connects and installs the internal components, and is convenient for the subsequent use of the entire device, the internal structure component 2 is convenient for drying and cooling the upper material, and the fan component 3 is convenient for drying the upper device by wind power.

[0029] See also Figure 1 - Figure 4 A body 101 is installed at the upper end of the device component 1, and a connection port 102 is installed on the upper left side of the body 101, an inlet 103 is installed on the upper end of the connection port 102, an air outlet 104 is installed on the upper end of the body 101, and a pouring port 105 is installed on the right side of the body 101.

[0030] Through the above structure: the internal parts are installed through the machine body 101, the connection port 102 combined with the inlet 103 facilitates the material to be transported into the grate cooler, the air outlet 104 facilitates the output of the drying wind inside the device, and the pouring port 105 discharges the cooled material.

[0031] See also Figure 1 - Figure 4 A grate plate 201 is installed at the upper end of the internal structure component 2, the sealing strip 202 is a resin strip structure seal, and a moving block is installed at the lower end of the movable sealing plate 206, and the movable sealing plate 206 is a high-temperature resistant silicone cloth structure.

[0032] Through the above structure: the grate plate 201 is set to receive the material at the upper end and facilitate the discharge of wind force, the sealing strip 202 connects and fixes the grate plate 201 with the inflatable beam 203 at the lower end, the inflatable beam 203 facilitates the transportation of other materials to the upper end of the grate plate 201, the wind chamber 204 facilitates the pressure stabilization of the airflow inside the device, the movable groove 205 connects and installs the movable sealing plate 206 at the upper end, and the movable sealing plate 206 facilitates the separation of the wind chamber 204.

[0033] See also Figure 1 - Figure 4 A delivery pipe 301 is installed at the upper end of the fan assembly 3, and a connecting pipe 302 is installed on the left side of the delivery pipe 301. The delivery pipe 301 is connected and installed at the lower end of the inflatable beam 203. The outer shell 304 and the internal structure constitute the fan body. The number of fan bodies is three, and the air door opening of each fan is adjusted to 100%.

[0034] Through the above structure: the wind power is transmitted by installing the transmission pipe 301, the connecting pipe 302 is connected to the concentration box 303 to facilitate the centralized collection of wind power, the outer shell 304 protects the internal structural parts, the power booster plate 305 passes electricity for the entire device, and the high-power impeller 306 provides rotational wind power for the device.

[0035] When in use, first, the material to be cooled is conveyed into the machine body 101 through the inlet 103, and the device is started. When the device is started, the fan assembly 3 at the lower end is opened, and the high-power impeller 306 is started through the electric power pressure plate 305 inside the shell 304. Wind power is generated by the high-power impeller 306, and the wind power reaches the connecting pipe 302 through the front-end central box 303. The connecting pipe 302 is connected to the conveying pipe 301, and the conveying pipe 301 is connected to the inflatable beam 203 to convey the wind power to the inside of the inflatable beam 203. The airflow passes through the inflatable beam 203, and the beam is vibrated by continuous inflation and exhaust. The upper part of the inflatable beam 203 The end is connected with a grate plate 201, and the gas is discharged through the small holes on the upper end of the grate plate 201. The upper grate plate 201 is driven to vibrate by the vibration of the inflatable beam 203. The grate plate 201 continuously shakes the material to make it fully contact with the cooling gas to achieve the purpose of cooling and drying. The original asbestos rope seal between the inflatable beam 203 and the grate plate 201 is changed to a sealing strip 202 (resin strip) seal, and the asbestos board seal of each wind chamber 204 is changed to a movable sealing sleeve seal (high-temperature silicone cloth). The grate cooler fan assembly 3 is modified to increase the pressure and air volume to ensure that the fan can do work, and the air door opening of each fan is adjusted to 100% to make the fan air volume reach full load. The secondary and tertiary air temperatures have been greatly increased, with the secondary air temperature rising from less than 1000℃ to about 1150℃, and the tertiary air temperature rising from about 750℃ to about 950℃. The clinker temperature out of the grate cooler has generally dropped by about 80℃, the "snowman" phenomenon in the grate cooler has disappeared, the clinker granulation is uniform, and the granulation condition has been significantly improved. The daily clinker output has increased by 200 tons, the clinker strength has increased by 2MPa, the standard consistency of the clinker has decreased by 2%, and the quality has been significantly improved.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Clinker waste heat recovery and utilization structure, It is characterized in that The invention comprises a device component (1), wherein an internal structure component (2) is installed inside the device component (1), a sealing strip (202) is installed at the lower end of the internal structure component (2), an inflatable beam (203) is installed at the lower end of the sealing strip (202), and a wind chamber (204) is installed at the lower end of the inflatable beam (203), a movable groove (205) is installed at the lower end of the wind chamber (204), and a movable sealing plate (206) is installed at the lower end of the movable groove (205), a fan component (3) is installed on the left side of the internal structure component (2), a centralizing box (303) is installed at the upper end of the fan component (3), and a casing (304) is installed on the left side of the centralizing box (303), an electric power pressurization plate (305) is installed inside the casing (304), and a high-power impeller (306) is installed at the front end of the electric power pressurization plate (305).

2. The clinker waste heat recovery and utilization structure according to claim 1, It is characterized in that A body (101) is installed at the upper end of the device component (1), and a connection port (102) is installed on the left side of the upper end of the body (101), an inlet (103) is installed at the upper end of the connection port (102), an air outlet (104) is installed at the upper end of the body (101), and a pouring port (105) is installed on the right side of the body (101).

3. The clinker waste heat recovery and utilization structure according to claim 1, It is characterized in that A grate plate (201) is installed at the upper end of the internal structure component (2).

4. The clinker waste heat recovery and utilization structure according to claim 1, It is characterized in that A delivery pipe (301) is installed at the upper end of the fan assembly (3), and a connecting pipe (302) is installed on the left side of the delivery pipe (301).

5. The clinker waste heat recovery and utilization structure according to claim 1, It is characterized in that The internal structure component (2) is installed inside the body (101) of the internal device component (1), and the fan component (3) is installed on the left side of the wind chamber (204) in the internal structure component (2).

6. The clinker waste heat recovery and utilization structure according to claim 3, It is characterized in that The sealing strip (202) is a resin strip structure seal, a moving block is installed at the lower end of the movable sealing plate (206), and the movable sealing plate (206) is a high-temperature resistant silicone cloth structure.

7. The clinker waste heat recovery and utilization structure according to claim 4, It is characterized in that The delivery pipe (301) is connected and installed at the lower end of the inflatable beam (203), and the outer shell (304) and the internal structure constitute a fan body. The number of fan bodies is three, and the air door opening of each fan is adjusted to 100%.

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