Waste heat recycling device for cement preparation

Abstract

The utility model relates to the technical field of waste heat recycling, in particular to a waste heat recycling device for cement preparation, which adopts the technical scheme that the waste heat recycling device comprises a shell, a first reserved groove is formed above one side of the outer side of the shell, a filter plate is movably inserted in the first reserved groove, and the waste heat recycling device further comprises a sleeve; the casing pipe is sleeved on the outer side of the shell below the first reserved groove; a second reserved groove is formed in one side, on the inner side of the sleeve, of the shell. The utility model solves the problem that the device in the prior art is easy to be influenced by smoke dust and causes unsmooth exhaust of tail gas when being used.

Description

Technical Field

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

[0002] Cement is a powdery, hydraulic inorganic gelling material. It becomes a slurry after adding water and stirring. It can harden in the air or in water, and can firmly bond sand, stone and other materials together. After hardening, it not only has high strength, but also can resist the erosion of fresh water or salt water. For a long time, as an important gelling material, it has generated a lot of heat in the cement production process. When the heat is not recycled, it will cause a certain amount of heat waste, and it is very likely to cause waste gas pollution.

[0003] Chinese utility model patent: Publication number CN220229862U discloses a waste heat recovery device for cement production, including a drying bin, the outer surfaces of both sides of the drying bin are fixedly connected with support columns, the outer surface of the lower end of the drying bin is provided with a multi-angle hot air drying device for improving the waste heat recovery effect of cement production, the multi-angle hot air drying device includes bottom ventilation holes, side ventilation holes and an installation box, the inner surface of the lower end of the installation box is fixedly installed with a chassis, the interior of the chassis is fixedly installed with a fan, and the lower end of the chassis is fixedly installed with a fan. A hot air inlet is provided in the middle of the outer surface of the end, and a water absorption plate is provided on the inner surface of the hot air inlet; a connecting pipe is provided in the middle of the upper outer surface of the chassis, and the other end of the connecting pipe is fixedly connected to a diverter pipe; a lower air outlet pipe is fixedly connected to the middle of the upper outer surface of the diverter pipe, and a lower air blowing hood is provided at the other end of the lower air outlet pipe; side air outlet pipes are fixedly connected at both ends of the diverter pipe, and a side air blowing hood is provided at the other end of the side air outlet pipe; an automatic flipping and stirring device for improving the uniformity of heat and drying is provided inside the drying bin.

[0004] In the existing technology, when CN220229862U is in use, a multi-angle hot air drying device is provided, which has a simple structure, can improve the utilization rate of waste heat recovery from cement production, and can improve the drying efficiency of materials by blowing air at multiple angles; at the same time, by providing an automatic turning and stirring device, when the multi-angle hot air drying device dries the materials in the drying bin, the driving motor is started, and the output shaft of the driving motor is controlled to rotate, and then the rotating shaft is driven to rotate in the drying bin through the installed bearing. After the rotating shaft rotates, it drives the rotating shaft to rotate to stir the material, and after the turning rake rotates, it drives the material at the bottom of the drying bin to turn over, thereby improving the uniformity of heating of the material and further improving the drying efficiency.

[0005] There is a large amount of smoke and dust in the exhaust gas from the kiln tail. Although a water absorption plate is set in the prior art, it will be blocked by smoke and dust after long-term use, which will lead to poor exhaust. Therefore, a waste heat recovery and utilization device for cement preparation is needed to solve the above problem. Utility Model Content

[0006] The purpose of the utility model is to provide a waste heat recovery and utilization device for cement preparation, which has the advantages of filtering smoke and dust in exhaust gas and facilitating cleaning operations, thereby solving the problem in the prior art that the device is easily affected by smoke and dust during use, resulting in poor exhaust gas discharge.

[0007] To achieve the above object, the utility model provides the following technical solution: a waste heat recovery and utilization device for cement preparation, comprising a shell, a first reserved groove is opened on the upper side of the outer side of the shell, a filter plate is movably inserted in the first reserved groove, and also includes a sleeve;

[0008] The sleeve is sleeved on the outer side of the shell below the first reserved groove;

[0009] Wherein, a second reserved groove is opened on one side of the shell inside the sleeve.

[0010] When using a waste heat recovery and utilization device for cement preparation in the technical solution, the top of the connecting pipe is connected and installed with the hot air inlet of the device in the prior art through a flange, and a filter plate is inserted into the first reserved groove. At this time, the exhaust gas can be filtered through the filter plate when entering, so that the smoke and dust in the exhaust gas entering the existing device can be filtered. When used for a long time, a large amount of smoke and dust is adsorbed on the filter plate. At this time, the filter plate can be pulled out through the baffle, and during the extraction process, the smoke and dust attached to the bottom of the filter plate is scraped off by the shell and falls onto the guide plate, and then the operator can remove the sealing cover to clean the smoke and dust through the discharge pipe.

[0011] Preferably, a flange is fixedly installed on the bottom of the shell, and a connecting pipe is installed on the top of the shell.

[0012] By fixing a flange on the bottom of the shell, the shell can be connected with the exhaust pipe at the kiln tail through the flange, so that the kiln tail gas can enter the shell.

[0013] Preferably, a control valve is provided on the connecting pipe, and a flange is fixedly installed on the top of the connecting pipe.

[0014] By arranging a control valve on the connecting pipe, the control valve can be closed when producing ordinary silicate clinker, and the control valve can be opened when producing special cement, so that hot air can be introduced into the existing device.

[0015] Preferably, a baffle is fixedly mounted on the filter plate, and the inner side of the baffle is in contact with the outer wall of the shell but not fixedly connected.

[0016] By fixing a baffle on the filter plate, and making the inner side of the baffle contact with the outer wall of the shell but not fixedly connected, the connection between the filter plate and the first reserved groove can be sealed by the baffle.

[0017] Preferably, the sleeve is welded and installed to the shell, and one side of the sleeve is open and connected to a discharge pipe.

[0018] The sleeve is welded to the shell to improve the sealing performance of the connection. At the same time, one side of the sleeve is opened and connected to a discharge pipe, so that the smoke can be discharged through the discharge pipe.

[0019] Preferably, a sealing cover is threadedly mounted on the discharge pipe, and the bottom of the inner wall of the discharge pipe is flush with the bottom of the second reserved groove.

[0020] A sealing cover is threadedly installed on the discharge pipe, so that the discharge pipe can be sealed by the sealing cover when ash discharge is not performed, and the bottom of the inner wall of the discharge pipe is level with the bottom of the second reserved groove, so as to facilitate the scraping and discharge of smoke and dust.

[0021] Preferably, a material guide plate is fixedly installed on the inner side of the shell at the bottom of the second reserved groove, the material guide plate forms an angle of forty-five degrees with the outer wall of the shell, and the side of the material guide plate away from the second reserved groove does not contact the inner wall of the shell.

[0022] A material guide plate is fixedly installed on the inner side of the shell at the bottom of the second reserved groove, and the material guide plate is at a forty-five degree angle with the outer wall of the shell. At the same time, the side of the material guide plate facing away from the second reserved groove does not contact the inner wall of the shell, so that the scraped smoke can be guided and discharged through the material guide plate without affecting the gas entry.

[0023] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0024] The utility model sets a sleeve and sleeves the sleeve on the outer side of the shell below the first reserved groove. At the same time, a second reserved groove is opened on one side of the shell inside the sleeve. When in use, the top of the connecting pipe is connected and installed with the hot air inlet of the device in the prior art through a flange, and a filter plate is inserted into the first reserved groove. At this time, the exhaust gas can be filtered through the filter plate when entering, so that the smoke and dust in the exhaust gas entering the existing device can be filtered. When used for a long time, a large amount of smoke and dust are adsorbed on the filter plate. At this time, the filter plate can be pulled out through the baffle, and during the pulling process, the smoke and dust attached to the bottom of the filter plate is scraped off by the shell and falls onto the guide plate, and then the sealing cover can be removed by the operator to clean the smoke and dust through the discharge pipe, thereby achieving the effect of filtering the smoke and dust in the exhaust gas and facilitating the cleaning operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0026] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0027] Figure 3 This is a schematic diagram of the housing structure of the utility model;

[0028] Figure 4 It is a front view structural schematic diagram of the utility model.

[0029] In the figure: 1. sealing cover; 2. discharge pipe; 3. baffle; 4. connecting pipe; 5. control valve; 6. shell; 7. sleeve; 8. filter plate; 9. guide plate; 10. first reserved groove; 11. second reserved groove. DETAILED DESCRIPTION

[0030] 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.

[0031] Example

[0032] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, an embodiment of the utility model is: a waste heat recovery device for cement preparation, comprising a shell 6, a first reserved groove 10 is opened on the upper side of the outer side of the shell 6, a filter plate 8 is movably inserted in the first reserved groove 10, and also includes a sleeve 7;

[0033] Specifically,

[0034] The sleeve 7 is sleeved on the outer side of the housing 6 below the first reserved groove 10;

[0035] A second reserved groove 11 is formed on one side of the shell 6 inside the sleeve 7 .

[0036] By setting a sleeve 7 and sleeve the sleeve 7 on the outer side of the shell 6 below the first reserved groove 10, at the same time, a second reserved groove 11 is opened on one side of the shell 6 inside the sleeve 7, and then when in use, the top of the connecting pipe 4 is connected and installed with the hot air inlet of the device in the prior art through a flange, and a filter plate 8 is inserted into the first reserved groove 10. At this time, the exhaust gas can be filtered through the filter plate 8 when entering, so that the smoke and dust in the exhaust gas entering the existing device is filtered. When used for a long time, a large amount of smoke and dust are adsorbed on the filter plate 8. At this time, the filter plate 8 can be pulled out through the baffle 3, and during the extraction process, the smoke and dust attached to the bottom of the filter plate 8 is scraped off by the shell 6 and falls onto the guide plate 9, and then the sealing cover 1 can be removed by the operator, so as to clean the smoke and dust through the discharge pipe 2, thereby filtering the smoke and dust in the exhaust gas and facilitating the cleaning operation.

[0037] Preferably, a flange is fixedly installed at the bottom of the shell 6, and a connecting pipe 4 is installed on the top of the shell 6.

[0038] By fixing a flange on the bottom of the shell 6 , the shell 6 can be connected to the exhaust pipe at the kiln tail through the flange, so that the kiln tail gas can enter the shell 6 .

[0039] Preferably, a control valve 5 is provided on the connecting pipe 4 , and a flange is fixedly installed on the top of the connecting pipe 4 .

[0040] By providing a control valve 5 on the connecting pipe 4, the control valve 5 can be closed when producing ordinary silicate clinker, and the control valve 5 can be opened when producing special cement, so that hot air can be introduced into the existing device.

[0041] Preferably, a baffle plate 3 is fixedly mounted on the filter plate 8, and the inner side of the baffle plate 3 is in contact with the outer wall of the shell 6 but not fixedly connected.

[0042] By fixing the baffle plate 3 on the filter plate 8 and making the inner side of the baffle plate 3 contact with the outer wall of the shell 6 but not fixedly connected, the connection between the filter plate 8 and the first reserved groove 10 can be sealed by the baffle plate 3.

[0043] Preferably, the sleeve 7 is welded and installed to the shell 6 , and one side of the sleeve 7 is open and connected to the discharge pipe 2 .

[0044] The sleeve 7 is welded to the shell 6 to improve the sealing of the connection. At the same time, one side of the sleeve 7 is opened and connected to the discharge pipe 2, so that the smoke can be scraped and discharged through the discharge pipe 2.

[0045] Preferably, a sealing cover 1 is threadedly mounted on the discharge pipe 2 , and the bottom of the inner wall of the discharge pipe 2 is flush with the bottom of the second reserved groove 11 .

[0046] The sealing cover 1 is threadedly installed on the discharge pipe 2, so that the discharge pipe 2 can be sealed by the sealing cover 1 when ash discharge is not performed, and the bottom of the inner wall of the discharge pipe 2 is flush with the bottom of the second reserved groove 11, so as to facilitate the scraping and discharge of smoke and dust.

[0047] Preferably, a guide plate 9 is fixedly installed on the inner side of the shell 6 at the bottom of the second reserved groove 11 , and the guide plate 9 forms an angle of forty-five degrees with the outer wall of the shell 6 , and the side of the guide plate 9 facing away from the second reserved groove 11 does not contact the inner wall of the shell 6 .

[0048] A guide plate 9 is fixedly installed on the inner side of the shell 6 at the bottom of the second reserved groove 11, and the guide plate 9 is at a 45 degree angle with the outer wall of the shell 6. At the same time, the side of the guide plate 9 away from the second reserved groove 11 does not contact the inner wall of the shell 6, so that the scraped smoke can be guided and discharged through the guide plate 9 without affecting the gas entry. When the utility model is used, the top of the connecting pipe 4 is connected and installed with the hot air inlet of the device in the prior art through the flange, and the filter plate 8 is inserted into the first reserved groove 10. At this time, the exhaust gas can be filtered through the filter plate 8 when entering, so that the smoke in the exhaust entering the existing device is filtered. When used for a long time, a large amount of smoke is adsorbed on the filter plate 8. At this time, the filter plate 8 can be pulled out through the baffle 3, and during the extraction process, the smoke attached to the bottom of the filter plate 8 is scraped off by the shell 6 and falls on the guide plate 9, and then the operator can remove the sealing cover 1, so as to clean the smoke through the discharge pipe 2.

[0049] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A waste heat recovery device for cement production, comprising a shell (6), a first reserved groove (10) is provided on the upper side of the outer side of the shell (6), a filter plate (8) is movably inserted in the first reserved groove (10), characterized in that: Also includes: A sleeve (7) is sleeved on the outer side of the housing (6) below the first reserved groove (10); A second reserved groove (11) is provided on one side of the shell (6) inside the sleeve (7).

2. The waste heat recovery device for cement production according to claim 1, characterized in that: A flange is fixedly mounted on the bottom of the shell (6), and a connecting pipe (4) is connected and mounted on the top of the shell (6).

3. The waste heat recovery device for cement production according to claim 2, characterized in that: The connecting pipe (4) is provided with a control valve (5), and a flange is fixedly installed on the top of the connecting pipe (4).

4. The waste heat recovery and utilization device for cement production according to claim 1, characterized in that: A baffle (3) is fixedly mounted on the filter plate (8), and the inner side of the baffle (3) is in contact with the outer wall of the shell (6) but is not fixedly connected.

5. The waste heat recovery and utilization device for cement production according to claim 1, characterized in that: The sleeve (7) is welded and installed to the shell (6); one side of the sleeve (7) is open and connected to a discharge pipe (2).

6. The waste heat recovery and utilization device for cement production according to claim 5, characterized in that: A sealing cover (1) is threadedly mounted on the discharge pipe (2), and the bottom of the inner wall of the discharge pipe (2) is flush with the bottom of the second reserved groove (11).

7. The waste heat recovery and utilization device for cement production according to claim 1, characterized in that: A material guide plate (9) is fixedly mounted on the inner side of the shell (6) at the bottom of the second reserved groove (11), the material guide plate (9) and the outer wall of the shell (6) form an angle of forty-five degrees, and the side of the material guide plate (9) facing away from the second reserved groove (11) does not contact the inner wall of the shell (6).

Images