Cyclone preheater with waste heat recovery function

Abstract

The utility model provides a cyclone preheater with a waste heat recovery function, and relates to the technical field of cyclone preheaters, the cyclone preheater comprises a cyclone cylinder and a filter box, the top of the cyclone cylinder is communicated with an ascending pipeline, an exhaust pipe is communicated between the ascending pipeline and the top of the filter box, the exhaust pipe is provided with an exhaust pump, and the exhaust pump is communicated with the ascending pipeline. An air outlet pipe is arranged at the bottom of the filtering box in a communicating mode, a material blocking net plate is arranged in the cyclone cylinder, a first cleaning brush is arranged at the lower end of the material blocking net plate in an attached mode, a filtering net plate is arranged in the filtering box, and a second cleaning brush is arranged at the upper end of the filtering net plate in an attached mode; a linkage assembly is arranged between the first cleaning brush and the second cleaning brush; by arranging the linkage assembly, when the air extracting pump extracts air, the first cleaning brush and the second cleaning brush are driven to rotate, meanwhile, the material blocking net plate and the filter net plate are brushed and cleaned, and the situation that normal circulation of air is affected due to the fact that the material blocking net plate or the filter net plate is blocked by materials or dust is prevented.

Description

Technical Field

[0001] The present application relates to the technical field of cyclone preheaters, and in particular to a cyclone preheater with a waste heat recovery function. Background Art

[0002] The cyclone preheater is the core equipment of the new dry cement production technology. It uses suspended preheating to complete the preheating and partial decomposition of raw materials, so as to shorten the length of the rotary kiln. At the same time, the raw materials are fully mixed with the hot air flow in the kiln to improve the heat exchange efficiency, thereby achieving the purpose of improving the production efficiency of the entire kiln system and reducing the heat consumption of clinker burning. The existing cyclone preheater does not have the function of waste heat recovery, and the waste heat loss in the external environment causes waste of resources. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a cyclone preheater with a waste heat recovery function, which can solve the technical problem that the existing cyclone preheater does not have a waste heat recovery function and the waste heat in the gas is lost in the external environment, causing waste of resources.

[0004] The embodiment of the present application provides a cyclone preheater with a waste heat recovery function, comprising a cyclone cylinder and a filter box, the top of the cyclone cylinder is connected to a rising pipe, the rising pipe and the top of the filter box are connected to an exhaust pipe, an exhaust pump is provided on the exhaust pipe, and an exhaust pipe is connected to the bottom of the filter box, a material blocking mesh plate is provided in the cyclone cylinder, a first cleaning brush is attached to the lower end of the material blocking mesh plate, a filter mesh plate is provided in the filter box, a second cleaning brush is attached to the upper end of the filter mesh plate, and a linkage component is provided between the first cleaning brush and the second cleaning brush;

[0005] The linkage assembly comprises a rotating fan, and the rotating fan is located in the air extraction pipe.

[0006] The gear train is a gear that is coupled to the first gear and the gear that is coupled to the gear train, and the gear train is coupled to the gear train, and the gear train is coupled to the gear train.

[0007] Among them, a cover plate is provided on the filter box, a slide groove is opened in the filter box, and an installation frame is provided in the filter box. The installation frame is connected to the slide groove in a limited sliding manner. A spring is pre-pressed between the lower end of the installation frame and the slide groove. The filter mesh plate can be placed on the upper end of the installation frame, and the filter mesh plate is connected to the slide groove in a limited sliding manner.

[0008] Wherein, a first handle is fixedly provided on the cover plate, and a second handle is fixedly provided on the lower end of the installation frame.

[0009] Among them, the side end of the cyclone is connected to an air inlet pipe, the air inlet pipe is connected to a feed pipe, and the bottom of the cyclone is connected to a discharge pipe.

[0010] Wherein, a valve is arranged on the air extraction pipe.

[0011] Beneficial effects of the utility model:

[0012] The utility model provides a cyclone preheater with a waste heat recovery function. When the cyclone preheater stops preheating materials, the suction pump is turned on to pump the gas containing waste heat in the cyclone barrel into the filter box through the ascending pipe and the suction pipe. The gas containing waste heat is filtered and dust-removed by the filter screen plate and then sent to the waste heat utilization equipment through the outlet pipe for recycling. When the gas flows through the suction pipe, it drives the rotating fan to rotate. The rotating fan drives the first cleaning brush and the second cleaning brush to rotate through the linkage component. The first cleaning brush brushes and cleans the material blocking screen plate, and the second cleaning brush brushes and cleans the filter screen plate. The cyclone The preheater can recycle the waste heat in the gas to prevent waste of resources; the cyclone preheater can prevent the material in the cyclone from entering the ascending pipe by setting a material blocking mesh plate, and will not affect the normal circulation of the gas; the cyclone preheater can filter and remove dust from the gas by setting a filter mesh plate to improve the cleanliness of the gas; the cyclone preheater is provided with a linkage component, when the vacuum pump is pumping air, it drives the first cleaning brush and the second cleaning brush to rotate, and at the same time brushes and cleans the material blocking mesh plate and the filter mesh plate to prevent the material blocking mesh plate or the filter mesh plate from being blocked by materials or dust and affecting the normal circulation of the gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a schematic diagram of the overall front cross-sectional structure in some embodiments of the present application;

[0015] Figure 2 This is a schematic diagram of the main cross-sectional structure of the filter box in some embodiments of the present application;

[0016] Figure 3 This is a schematic diagram of the main structure of the filter box in some embodiments of the present application;

[0017] Figure 4 This is a bottom view structural diagram of a material retaining mesh plate in some embodiments of the present application;

[0018] Figure 5 This is a schematic diagram of the top view of the filter screen plate in some embodiments of the present application.

[0019] The reference numerals are:

[0020] 1. Cyclone; 11. Rising pipe; 12. Air extraction pipe; 13. Air extraction pump; 14. Material blocking mesh plate; 15. First cleaning brush; 16. Air inlet pipe; 17. Material feed pipe; 18. Material discharge pipe; 19. Valve;

[0021] 2. Filter box; 21. Air outlet pipe; 22. Filter screen; 23. Second cleaning brush; 24. Cover plate; 25. Slide; 26. Mounting frame; 27. Spring; 28. First handle; 29. ​​Second handle;

[0022] 3. Linkage assembly; 31. Rotating fan; 32. First rotating shaft; 33. Second rotating shaft; 34. Third rotating shaft; 35. First bevel gear; 36. Second bevel gear; 37. Third bevel gear; 38. Fourth bevel gear. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0025] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0026] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0027] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0028] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0029] like Figures 1 to 5 As shown, the embodiment of the present application provides a cyclone preheater with a waste heat recovery function, including a cyclone cylinder 1 and a filter box 2, the top of the cyclone cylinder 1 is connected with an ascending pipe 11, an exhaust pipe 12 is connected between the ascending pipe 11 and the top of the filter box 2, an exhaust pump 13 is provided on the exhaust pipe 12, and an outlet pipe 21 is connected to the bottom of the filter box 2, a material blocking mesh plate 14 is provided in the cyclone cylinder 1, and a first cleaning brush 15 is attached to the lower end of the material blocking mesh plate 14, a filter mesh plate 22 is provided in the filter box 2, and a second cleaning brush 23 is attached to the upper end of the filter mesh plate 22, and a linkage component 3 is provided between the first cleaning brush 15 and the second cleaning brush 23;

[0030] The linkage assembly 3 includes a rotating fan 31 , and the rotating fan 31 is located in the exhaust pipe 12 .

[0031] When the cyclone preheater stops preheating the material, the vacuum pump 13 is turned on to pump the gas containing residual heat in the cyclone 1 into the filter box 2 through the ascending pipe 11 and the vacuum pipe 12. The gas containing residual heat is filtered and dust-removed by the filter screen 22 and then sent to the residual heat utilization equipment through the outlet pipe 21 for recycling. When the gas flows through the vacuum pipe 12, it drives the rotating fan 31 to rotate. The rotating fan 31 drives the first cleaning brush 15 and the second cleaning brush 23 to rotate through the linkage component 3. The first cleaning brush 15 brushes and cleans the material blocking screen 14, and the second cleaning brush 23 brushes and cleans the filter screen 22. The cyclone preheater can remove the residual heat in the gas. The waste heat is recycled to prevent waste of resources; the cyclone preheater can prevent the material in the cyclone 1 from entering the ascending pipe 11 by setting the material blocking mesh plate 14, and does not affect the normal circulation of the gas; the cyclone preheater can filter and remove dust from the gas by setting the filter mesh plate 22 to improve the cleanliness of the gas; the cyclone preheater is provided with a linkage component 3, when the vacuum pump 13 is pumping air, it drives the first cleaning brush 15 and the second cleaning brush 23 to rotate, and at the same time brushes and cleans the material blocking mesh plate 14 and the filter mesh plate 22 to prevent the material blocking mesh plate 14 or the filter mesh plate 22 from being blocked by materials or dust and affecting the normal circulation of the gas.

[0032] like Figure 1 As shown, in the present embodiment, the linkage assembly 3 includes a first rotating shaft 32, a second rotating shaft 33, a third rotating shaft 34, a first bevel gear 35, a second bevel gear 36, a third bevel gear 37 and a fourth bevel gear 38. One end of the first rotating shaft 32 rotates through the material blocking mesh plate 14 through a bearing, and one end of the first rotating shaft 32 is fixedly connected to the first cleaning brush 15, the first bevel gear 35 is fixedly arranged on the other end of the first rotating shaft 32, one end of the second rotating shaft 33 is fixedly connected to the second cleaning brush 23, and the other end of the second rotating shaft 33 rotates through the exhaust pipe 12 through a bearing, the second bevel gear 36 is fixedly arranged on the other end of the second rotating shaft 33, the rotating fan 31 is fixedly sleeved on the second rotating shaft 33, the third rotating shaft 34 rotates through the rising pipe 11 through a bearing, the third bevel gear 37 and the fourth bevel gear 38 are respectively arranged at both ends of the third rotating shaft 34, the third bevel gear 37 is meshingly connected with the first bevel gear 35, and the fourth bevel gear 38 is meshingly connected with the second bevel gear 36.

[0033] When in use, the gas drives the rotating fan 31 to rotate when flowing through the exhaust pipe 12, the rotating fan 31 drives the second rotating shaft 33 to rotate, the second rotating shaft 33 drives the second cleaning brush 23 to rotate, the second cleaning brush 23 brushes and cleans the filter screen 22, the second rotating shaft 33 synchronously drives the second bevel gear 36 to rotate, the second bevel gear 36 drives the fourth bevel gear 38 to rotate, the fourth bevel gear 38 drives the third rotating shaft 34 to rotate, the third rotating shaft 34 drives the third bevel gear 37 to rotate, the third bevel gear 37 drives the first bevel gear 36 to rotate, The gear 35 rotates, the first bevel gear 35 drives the first rotating shaft 32 to rotate, the first rotating shaft 32 drives the first cleaning brush 15 to rotate, and the first cleaning brush 15 brushes and cleans the material blocking mesh plate 14; the cyclone preheater is provided with a linkage component 3, when the vacuum pump 13 is pumping air, it drives the first cleaning brush 15 and the second cleaning brush 23 to rotate, and at the same time brushes and cleans the material blocking mesh plate 14 and the filter mesh plate 22 to prevent the material blocking mesh plate 14 or the filter mesh plate 22 from being blocked by materials or dust and affecting the normal circulation of gas.

[0034] like Figure 2 and 3 As shown, in this embodiment, a cover plate 24 is provided on the filter box 2, a slide groove 25 is opened in the filter box 2, and an installation frame 26 is provided in the filter box 2. The installation frame 26 is connected to the slide groove 25 by limiting sliding. A spring 27 is pre-pressed between the lower end of the installation frame 26 and the slide groove 25. The filter mesh plate 22 can be placed on the upper end of the installation frame 26, and the filter mesh plate 22 is connected to the slide groove 25 by limiting sliding.

[0035] When it is necessary to clean the dust and impurities accumulated on the filter screen plate 22, open the cover plate 24, move the installation frame 26 downward, and the filter screen plate 22 can be taken out of the filter box 2 for cleaning or replacement. When installing the filter screen plate 22, move the installation frame 26 downward, at this time the spring 27 is compressed, and then the filter screen plate 22 is placed on the installation frame 26, and the installation frame 26 is moved upward. Under the elastic force of the spring 27, the installation frame 26 presses the filter screen plate 22 tightly into the slide groove 25, and at this time the second cleaning brush 23 fits with the filter screen.

[0036] like Figure 2 and 3 As shown, in this embodiment, a first handle 28 is fixedly provided on the cover plate 24, and a second handle 29 is fixedly provided at the lower end of the mounting frame 26; the first handle 28 facilitates the staff to open and close the cover plate 24, and the second handle 29 facilitates the staff to move the mounting frame 26, thereby improving the convenience of use.

[0037] like Figure 1As shown, in this embodiment, an air inlet pipe 16 is connected to the side end of the cyclone 1, a feed pipe 17 is connected to the air inlet pipe 16, and a discharge pipe 18 is connected to the bottom of the cyclone 1; when the cyclone preheater is preheating the material, hot air is transported into the cyclone 1 through the air inlet pipe 16, and the material entering the air inlet pipe 16 through the feed pipe 17 enters the cyclone 1 together with the hot air, and the material is evenly distributed in the cyclone 1 as the air flow rotates at a high speed, and the material is heated in the collision with the air flow, and the preheated material is discharged through the discharge pipe 18, and the air flow is discharged through the ascending pipe 11.

[0038] like Figure 1 As shown, in this embodiment, a valve 19 is provided on the exhaust pipe 12; when the staff opens the valve 19, the exhaust pump 13 is started to extract the gas containing residual heat in the cyclone 1 through the ascending pipe 11 and the exhaust pipe 12 to the filter box 2.

[0039] Working principle: When the cyclone preheater with waste heat recovery function provided by the present application is in use, when the cyclone preheater performs material preheating work, hot air is transported to the cyclone barrel 1 through the air inlet pipe 16, and the material entering the air inlet pipe 16 through the feed pipe 17 enters the cyclone barrel 1 together with the hot air. The material is evenly distributed in the cyclone barrel 1 as the air flow rotates at a high speed, and the material is heated in the collision with the air flow. The preheated material is discharged through the discharge pipe 18, and the air flow is discharged through the ascending pipe 11; when the cyclone preheater stops preheating the material, the staff opens the valve 19, starts the vacuum pump 13 to pump the gas containing waste heat in the cyclone barrel 1 through the ascending pipe 11 and the vacuum pipe 12 to the filter box 2, and the gas containing waste heat passes through the filter screen 22. After filtering and dust removal, the gas is sent to the waste heat utilization equipment for recycling through the outlet pipe 21; when the gas flows through the exhaust pipe 12, the rotating fan 31 is driven to rotate, the rotating fan 31 drives the second rotating shaft 33 to rotate, the second rotating shaft 33 drives the second cleaning brush 23 to rotate, the second cleaning brush 23 brushes and cleans the filter screen 22, the second rotating shaft 33 synchronously drives the second bevel gear 36 to rotate, the second bevel gear 36 drives the fourth bevel gear 38 to rotate, the fourth bevel gear 38 drives the third rotating shaft 34 to rotate, the third rotating shaft 34 drives the third bevel gear 37 to rotate, the third bevel gear 37 drives the first bevel gear 35 to rotate, the first bevel gear 35 drives the first rotating shaft 32 to rotate, the first rotating shaft 32 drives the first cleaning brush 15 to rotate, and the first cleaning brush 15 brushes and cleans the material blocking screen 14.

[0040] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A cyclone preheater with waste heat recovery function, characterized in that: The invention comprises a cyclone barrel (1) and a filter box (2), wherein the top of the cyclone barrel (1) is connected to a rising pipe (11), an air extraction pipe (12) is connected between the rising pipe (11) and the top of the filter box (2), an air extraction pump (13) is arranged on the air extraction pipe (12), and an air outlet pipe (21) is connected to the bottom of the filter box (2); a material blocking mesh plate (14) is arranged in the cyclone barrel (1), a first cleaning brush (15) is fitted at the lower end of the material blocking mesh plate (14), a filter mesh plate (22) is arranged in the filter box (2), a second cleaning brush (23) is fitted at the upper end of the filter mesh plate (22), and a linkage component (3) is arranged between the first cleaning brush (15) and the second cleaning brush (23); The linkage assembly (3) comprises a rotating fan (31), and the rotating fan (31) is located in the exhaust pipe (12).

2. The cyclone preheater with waste heat recovery function according to claim 1 is characterized in that: The linkage assembly (3) comprises a first rotating shaft (32), a second rotating shaft (33), a third rotating shaft (34), a first bevel gear (35), a second bevel gear (36), a third bevel gear (37) and a fourth bevel gear (38); one end of the first rotating shaft (32) rotates through the material blocking mesh plate (14) via a bearing, and one end of the first rotating shaft (32) is fixedly connected to the first cleaning brush (15); the first bevel gear (35) is fixedly arranged on the other end of the first rotating shaft (32); one end of the second rotating shaft (33) is fixedly connected to the second cleaning brush (23); and the second rotating shaft (33) is fixedly connected to the second cleaning brush (23). The other end of the shaft (33) rotates through the exhaust pipe (12) through a bearing, the second bevel gear (36) is fixedly arranged on the other end of the second rotating shaft (33), the rotating fan (31) is fixedly sleeved on the second rotating shaft (33), the third rotating shaft (34) rotates through the bearing and passes through the ascending pipe (11), the third bevel gear (37) and the fourth bevel gear (38) are respectively arranged at two ends of the third rotating shaft (34), the third bevel gear (37) is meshedly connected with the first bevel gear (35), and the fourth bevel gear (38) is meshedly connected with the second bevel gear (36).

3. The cyclone preheater with waste heat recovery function according to claim 1 is characterized in that: The filter box (2) is provided with a cover plate (24), a slide groove (25) is provided in the filter box (2), a mounting frame (26) is provided in the filter box (2), the mounting frame (26) is connected to the slide groove (25) in a limited sliding manner, a spring (27) is pre-pressed between the lower end of the mounting frame (26) and the slide groove (25), the filter screen plate (22) can be placed on the upper end of the mounting frame (26), and the filter screen plate (22) is connected to the slide groove (25) in a limited sliding manner.

4. The cyclone preheater with waste heat recovery function according to claim 3 is characterized in that: A first handle (28) is fixedly provided on the cover plate (24), and a second handle (29) is fixedly provided at the lower end of the installation frame (26).

5. The cyclone preheater with waste heat recovery function according to claim 1, characterized in that: The side end of the cyclone barrel (1) is connected to an air inlet pipe (16), a feed pipe (17) is connected to the air inlet pipe (16), and a discharge pipe (18) is connected to the bottom of the cyclone barrel (1).

6. The cyclone preheater with waste heat recovery function according to claim 1, characterized in that: The air extraction pipe (12) is provided with a valve (19).

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