Novel Coanda grate plate type grate cooler

Abstract

The utility model discloses a novel Coanda grate plate type grate cooler, which belongs to the technical field of grate coolers, and comprises a shell, a feed port is arranged above the shell, a Coanda air supply component is arranged between the shell and the feed port, a grate plate component is arranged on the inner side of the shell, and the Coanda grate plate component is arranged on the outer side of the shell. A wind-shield wall is installed on the inner side of the shell and located above the grid plate assembly, a water spraying assembly is installed at the position, close to the edge, of the shell and located on the outer side of the grid plate assembly and below the wind-shield wall, a connecting pipe is arranged on the inclined upper portion of the shell, and an air outlet is formed in the upper portion of the connecting pipe; according to the utility model, the drying treatment device is arranged, so that a worker can carry out certain drying treatment on gas subjected to water spraying treatment through the cooperation of a movable box, a silica gel drying agent and other structures when needed, and therefore, the possibility that subsequent work or the environment is subjected to adverse effects due to a large amount of moisture is reduced; and therefore, the working capability of the grate cooler is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of grate coolers, and in particular relates to a novel Coenda grate plate type grate cooler. Background Art

[0002] Grate cooler is an important main equipment in the clinker burning system of cement plant. Its main function is to cool and transport cement clinker. At the same time, it provides hot air for rotary kiln and decomposition furnace, and is the main equipment for heat recovery in the burning system.

[0003] Chinese patent application No. 202020624418.0 discloses a low-energy grate cooler for cement processing and production, including a shell and a water tank. A water tank is arranged on one side of the shell. By controlling the valve, the nozzle and the atomizing nozzle can be used to spray water to cool the hot air at the inlet to achieve cooling, thereby protecting the grate bed. A reflux pipe is arranged at the lower end of the shell to facilitate the recycling of water. When water is sprayed, the hot flue gas will move upward. A wind shield wall is arranged to prevent the flue gas from overflowing from the inlet and reduce heat loss. When the hot air passes through the air outlet, the activated carbon layer, the glass fiber layer and the polypropylene short fiber woven layer can be used to filter the flue gas to prevent sulfur-containing substances from being directly discharged and polluting the environment. The connecting piece is fixedly connected to the mounting plate through a mounting hole, and a groove is arranged on one side of the connecting piece, which is convenient for fixing, installing and disassembling the grate plate. A filling layer is arranged on the inner wall of the shell, which has good stability, can protect the inner wall of the shell and improve the service life.

[0004] 1. The above-mentioned disclosed patent has the problem that it is unable to dry the gas after water spraying treatment when needed, which may easily cause adverse effects on subsequent work or the environment, thereby reducing the working capacity of the grate cooler; 2. The above-mentioned disclosed patent has the problem that it is unable to adjust the distance between the feed port and the air outlet when needed, thereby making it difficult to meet the working needs in different situations, thereby reducing the practicality of the grate cooler. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a new type of Coenda grate plate grate cooler, which has the characteristics of high working capacity and strong practicality.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new type of Coanda grate plate grate cooler, comprising a shell, a feed inlet is arranged above the shell, a Coanda air supply assembly is installed between the shell and the feed inlet, a grate plate assembly is installed on the inner side of the shell, a wind shield wall is installed on the inner side of the shell and above the grate plate assembly, a water spray assembly is installed at the edge of the shell and at the outer side of the grate plate assembly and below the wind shield wall, a connecting pipe is arranged obliquely above the shell, an air outlet is arranged above the connecting pipe, the connecting pipe and the air outlet are connected by a drying treatment device, and the shell and the connecting pipe are connected by a position adjustment device.

[0007] Preferably, the drying treatment device includes a connecting box, a movable box, a silica gel desiccant, a screw, a rotating plate, a fixed net and a closing component, a connecting box is arranged between the connecting pipe and the air outlet, the connecting pipe and the air outlet are connected to the connecting box through two fixed nets, a movable box is arranged on the inner side of the connecting box, a screw is installed on one side of the movable box through a bearing, a rotating plate is installed on the side of the screw away from the movable box, the inner side of the movable box is filled with silica gel desiccant, and a closing component is installed on the top of the connecting box and above the movable box.

[0008] Preferably, the height of the inner top surface and the inner bottom surface of the connection box is equal to the height of the outer top surface and the outer bottom surface of the moving box.

[0009] Preferably, the closure assembly includes an observation window and a threaded block, a threaded block is installed via threads at the top of the connection box and above the moving box, and an observation window is installed on the inner side of the threaded block.

[0010] Preferably, the position adjustment device includes a screw, a knob, a movable tube and a movable plate. The movable tube is installed below the connecting tube, a screw is installed on one side of the shell and below the movable tube through a bearing, a knob is installed on the side of the screw away from the shell, and a movable plate is installed on the outside of the movable tube and outside the screw.

[0011] Preferably, the outer side of the moving tube is in close contact with the side wall of the shell.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model provides a drying device so that the staff can dry the gas after water spraying when necessary through the cooperation of the mobile box and silica gel desiccant and other structures, thereby reducing the possibility of subsequent work or the environment being adversely affected by a large amount of moisture, thereby improving the working capacity of the grate cooler.

[0014] 2. The utility model provides a position adjustment device so that the staff can adjust the distance between the feed port and the air outlet when necessary through the cooperation of structures such as a screw rod and a moving tube, so as to better meet the work needs in different situations and thus improve the practicality of the grate cooler. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 It is a three-dimensional cutaway view of the utility model;

[0017] Figure 3 It is a three-dimensional cutaway view of the drying treatment device of the utility model;

[0018] Figure 4 It is a three-dimensional cutaway view of the position adjustment device of the utility model.

[0019] In the figure: 1. Shell; 2. Water spray assembly; 3. Coanda air supply assembly; 4. Feed inlet; 5. Wind shield wall; 6. Drying device; 61. Connecting box; 62. Moving box; 63. Silica gel desiccant; 64. Screw; 65. Rotating plate; 66. Fixed net; 67. Closing assembly; 671. Observation window; 672. Threaded block; 7. Air outlet; 8. Connecting pipe; 9. Position adjustment device; 91. Screw; 92. Knob; 93. Moving pipe; 94. Moving plate; 10. Grate assembly. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example 1

[0022] See also Figure 1-4The utility model provides the following technical solutions: a new type of Coanda grate plate grate cooler, comprising a shell 1, a material inlet 4 is arranged above the shell 1, a Coanda air supply assembly 3 is installed between the shell 1 and the material inlet 4, a grate plate assembly 10 is installed on the inner side of the shell 1, a wind shield wall 5 is installed on the inner side of the shell 1 and above the grate plate assembly 10, a water spray assembly 2 is installed at the edge of the shell 1 and at the outer side of the grate plate assembly 10 and below the wind shield wall 5, a connecting pipe 8 is arranged obliquely above the shell 1, an air outlet 7 is arranged above the connecting pipe 8, the connecting pipe 8 and the air outlet 7 are connected by a drying treatment device 6, and the shell 1 and the connecting pipe 8 are connected by a position adjustment device 9.

[0023] Specifically, the drying processing device 6 includes a connecting box 61, a mobile box 62, a silica gel desiccant 63, a screw 64, a rotating plate 65, a fixed net 66 and a closing component 67. The connecting box 61 is arranged between the connecting pipe 8 and the air outlet 7, and the connecting pipe 8 and the air outlet 7 are connected to the connecting box 61 through two fixed nets 66. The mobile box 62 is arranged on the inner side of the connecting box 61, and a screw 64 is installed on one side of the mobile box 62 through a bearing. A rotating plate 65 is installed on the side of the screw 64 away from the mobile box 62. The inner side of the mobile box 62 is filled with silica gel desiccant 63, and a closing component 67 is installed on the top of the connecting box 61 and above the mobile box 62.

[0024] By adopting the above technical solution, the staff can dry the gas after water spraying when necessary through the cooperation of the mobile box 62 and the silica gel desiccant 63, thereby reducing the possibility that subsequent work or the environment will be adversely affected by a large amount of moisture.

[0025] Specifically, the heights of the inner top surface and the inner bottom surface of the connection box 61 are equal to the heights of the outer top surface and the outer bottom surface of the moving box 62 .

[0026] By adopting the above technical solution, the grate cooler can ensure that the inner top surface and the inner bottom surface of the connecting box 61 can be tightly attached to the outer top surface and the outer bottom surface of the moving box 62, thereby preventing the connecting box 61 from rotating and deviating during the movement, and preventing the silica gel desiccant 63 from leaking.

[0027] Specifically, the closing component 67 includes an observation window 671 and a threaded block 672 . The threaded block 672 is threadedly installed at the top of the connecting box 61 and above the moving box 62 , and the observation window 671 is installed on the inner side of the threaded block 672 .

[0028] By adopting the above technical solution, the staff can unscrew the threaded block 672 to replace the silica gel desiccant 63 when necessary, and the staff can observe the status of the silica gel desiccant 63 through the observation window 671 when necessary.

[0029] When the present embodiment is used, when the staff needs to use the grate cooler, the grate plate assembly 10 is installed at the corresponding position on the housing 1, and then the grate cooler is installed in the working position, the threaded block 672 in the sealing assembly 67 in the drying device 6 is unscrewed, and enough silica gel desiccant 63 is put into the mobile box 62, and then the threaded block 672 is installed back on the connecting box 61 through the thread, and the rotating plate 65 is rotated, and the rotating plate 65 drives the screw 64 to rotate, the screw 64 is threadedly connected to the connecting box 61, and the screw 64 is bearing-connected to the mobile box 62, and the outer top surface and outer bottom surface of the mobile box 62 are close to the inner top surface and inner bottom surface of the connecting box 61, so the screw 64 drives the mobile box 62 to rotate. The box 62 and the silica gel desiccant 63 therein move until the silica gel desiccant 63 moves between the two fixed nets 66, and then gas is fed into the feed port 4. The staff can start the Coanda air supply component 3 for auxiliary air supply, and then the gas enters the shell 1, and the water spray component 2 is started to spray water to cool the gas. The windshield wall 5 limits the flow direction of the gas, and then the gas passes through the connecting pipe 8 and contacts the silica gel desiccant 63 between the two fixed nets 66. The moisture in the gas due to the water spraying treatment is absorbed by the silica gel desiccant 63, and then the gas is discharged through the air outlet 7. The work is completed, and the observation window 671 serves to facilitate the observation of the status of the silica gel desiccant 63.

[0030] Example 2

[0031] The difference between this embodiment and embodiment 1 is that the position adjustment device 9 includes a screw rod 91, a knob 92, a movable tube 93 and a movable plate 94, the movable tube 93 is installed below the connecting tube 8, the screw rod 91 is installed on one side of the shell 1 and below the movable tube 93 through a bearing, the knob 92 is installed on the side of the screw rod 91 away from the shell 1, and the movable plate 94 is installed on the outside of the movable tube 93 and outside the screw rod 91.

[0032] By adopting the above technical solution, the staff can adjust the distance between the feed port 4 and the air outlet 7 by means of the cooperation of the screw rod 91 and the movable tube 93 when necessary, so as to better meet the working needs in different situations.

[0033] Specifically, the outer side of the moving tube 93 and the side wall of the housing 1 are in close contact with each other.

[0034] By adopting the above technical solution, the grate cooler can prevent the existence of a gap between the outer side of the moving tube 93 and the side wall of the shell 1, thereby preventing the moving tube 93 from rotating and deviating during movement and preventing gas leakage.

[0035] When this embodiment is used, when it is necessary to adjust the distance between the feed port 4 and the air outlet 7, the staff turns the knob 92 in the position adjustment device 9, thereby driving the screw rod 91 to rotate. The screw rod 91 is threadedly connected to the movable plate 94, and the outer side of the movable tube 93 on the movable plate 94 is close to the side wall of the shell 1, so the screw rod 91 drives the movable plate 94 and the movable tube 93 and other structures to move, thereby driving the air outlet 7 to move, and then adjusting the distance between the feed port 4 and the air outlet 7. During operation, the gas passes through the movable tube 93 and enters the connecting tube 8 and other structures, thereby better meeting the working needs in different situations.

[0036] The structure and principle of the shell 1 and its upper structure, the water spray assembly 2 composed of a water tank, a water supply pipe, a nozzle, an atomizing nozzle, a valve and a return pipe, the feed port 4, the wind shield wall 5, the air outlet 7 and its upper structure, and the grate plate assembly 10 composed of a mounting plate, a connecting piece, a groove, a mounting hole, a grate plate, a grate bar and a heat dissipation hole in the utility model have been disclosed in a low-energy grate cooler for cement processing and production disclosed in Chinese patent application No. 202020624418.0. Its working principle is that a water tank is arranged on one side of the shell, and by controlling the valve, the nozzle and the atomizing nozzle can be used to spray water to cool the hot air at the feed port to achieve cooling, thereby protecting the grate bed, and a return pipe is arranged at the lower end of the shell. It is convenient to recycle water and avoid wasting water resources. When water is sprayed, hot flue gas will move upward. By setting up a windbreak wall, flue gas can be prevented from overflowing from the inlet and reducing heat loss. When hot air passes through the air outlet, the activated carbon layer, glass fiber layer and polypropylene staple fiber woven layer can be used to filter the flue gas to avoid direct discharge of sulfur-containing substances and polluting the environment. The connector and the mounting plate are fixedly connected through the mounting hole, and the groove is set on one side of the connector. The structure is simple, which is convenient for fixing, installing and disassembling the grate plate, saving time, and a filling layer is set on the inner wall of the shell, and a component made of a refractory perlite material is used, which has good stability, can protect the inner wall of the shell and improve the service life.

[0037] The structure and principle of the Coanda air supply assembly 3 composed of a cabinet, Coanda fins, hemi-Coanda fins and an exhaust fan in the utility model have been disclosed in the Coanda fin ventilation fan disclosed in Chinese patent application No. 201510905595.X. Its working principle is that the outer wall of the Coanda fin is a Coanda curved surface for guiding airflow, and its wall attachment effect greatly improves the airflow at the outlet. This guide surface based on the Coanda curved surface ensures the stability of the airflow and is conducive to the induction of the airflow. The ratio of the induced total air volume to the inlet air volume, i.e., the induction ratio, is as high as fifteen times. Compared with the circular air outlet, the strip air outlet blows out a more uniform and gentle airflow; it can be used as a fresh air fan or an exhaust fan.

[0038] The working principle and use process of the utility model are as follows: when the staff needs to use the grate cooler, the grate plate assembly 10 is installed at the corresponding position on the shell 1, and then the grate cooler is installed in the working position, the threaded block 672 in the sealing assembly 67 in the drying treatment device 6 is unscrewed, and enough silica gel desiccant 63 is put into the movable box 62, and then the threaded block 672 is installed back to the connecting box 61 through the thread, and the rotating plate 65 is rotated, and the rotating plate 65 drives the screw 64 to rotate, and the screw 64 is threadedly connected to the connecting box 61, and the screw 64 is bearing-connected to the movable box 62, and the outer top surface and outer bottom surface of the movable box 62 are close to the inner top surface and inner bottom surface of the connecting box 61, so the screw 64 drives the movable box 62 and the silica gel desiccant 63 therein to move until the silica gel desiccant 63 moves between the two fixed nets 66, and then the gas is sent into the feed port 4, and the staff can start the Coanda air supply assembly 3 for auxiliary air supply, and then the gas enters the shell 1, and the water spray assembly 2 is started The gas is sprayed with water for cooling, and the wind shield wall 5 limits the flow direction of the gas. Then the gas passes through the connecting pipe 8 and contacts the silica gel desiccant 63 between the two fixed nets 66. The moisture in the gas caused by the water spraying is absorbed by the silica gel desiccant 63, and then the gas is discharged through the air outlet 7. The work is completed, and the observation window 671 serves to facilitate the observation of the state of the silica gel desiccant 63. When it is necessary to adjust the distance between the feed port 4 and the air outlet 7, the staff turns the knob 92 in the position adjustment device 9, thereby driving the screw rod 91 to rotate. The screw rod 91 is threadedly connected to the movable plate 94, and the outer side of the movable tube 93 on the movable plate 94 is close to the side wall of the shell 1, so the screw rod 91 drives the movable plate 94 and the movable tube 93 and other structures to move, thereby driving the air outlet 7 to move, and then adjusting the distance between the feed port 4 and the air outlet 7. During operation, the gas passes through the movable tube 93 and enters the connecting pipe 8 and other structures, thereby better meeting the work needs in different situations.

[0039] 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. A new type of Coenda grate plate grate cooler, including a housing, characterized in that: A material inlet is arranged above the shell, a Coanda air supply assembly is installed between the shell and the material inlet, a grate plate assembly is installed on the inner side of the shell, a windshield wall is installed on the inner side of the shell and above the grate plate assembly, a water spray assembly is installed near the edge of the shell and on the outside of the grate plate assembly and below the windshield wall, a connecting pipe is arranged obliquely above the shell, an air outlet is arranged above the connecting pipe, the connecting pipe and the air outlet are connected by a drying treatment device, and the shell and the connecting pipe are connected by a position adjustment device.

2. A new type of Coenda grate plate grate cooler according to claim 1, characterized in that: The drying treatment device includes a connecting box, a moving box, a silica gel desiccant, a screw, a rotating plate, a fixed net and a closing component. A connecting box is arranged between the connecting pipe and the air outlet. The connecting pipe and the air outlet are connected to the connecting box through two fixed nets. A moving box is arranged on the inner side of the connecting box. A screw is installed on one side of the moving box through a bearing. A rotating plate is installed on the side of the screw away from the moving box. The inner side of the moving box is filled with silica gel desiccant. A closing component is installed on the top of the connecting box and above the moving box.

3. A new type of Coenda grate plate grate cooler according to claim 2, characterized in that: The heights of the inner top surface and the inner bottom surface of the connection box are equal to the heights of the outer top surface and the outer bottom surface of the moving box.

4. A new type of Coenda grate plate grate cooler according to claim 2, characterized in that: The closing component comprises an observation window and a threaded block. The threaded block is installed via threads at the top of the connection box and above the moving box, and the observation window is installed on the inner side of the threaded block.

5. The novel Coanda grate plate grate cooler according to claim 1 is characterized in that: The position adjustment device includes a screw, a knob, a moving tube and a moving plate. The moving tube is installed below the connecting tube, a screw is installed on one side of the shell and below the moving tube through a bearing, a knob is installed on the side of the screw away from the shell, and a moving plate is installed on the outside of the moving tube and outside the screw.

6. A new type of Coenda grate plate grate cooler according to claim 5, characterized in that: The outer side of the moving tube is in close contact with the side wall of the shell.

Images