Pneumatic grouting machine for coke oven basement brick gas passage
Through the spiral feed and differential box control of the pneumatic grouting machine, the limitations of the traditional brick gas channel spraying method in the basement of coke oven are solved, and the continuous conveying of slurry and fixed-height grouting are realized, which is suitable for slurry of different viscosity and is easy to operate.
Patent Information
- Application Number
- CN202421455436.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-25
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-06-25
AI Technical Summary
The traditional coke oven basement brick gas channel spraying method is difficult to achieve continuous operation, cannot control the amount and height of spraying, and cannot shut down and feed at any time, which has great limitations.
The pneumatic grouting machine is adopted, and the screw feeding method and differential box control is used. The pneumatic motor is used as the power source to continuously convey the slurry and fixing the height of the grouting is achieved through the spiral blades and feed pushers. It is equipped with a feed pusher and a pump head to achieve convenient slurry output.
The continuous rise of the slurry in the feed pipeline and the coke oven brick gas channel is achieved, and it can adapt to slurry of different viscosity, and can shut down and replenish slurry at any time, making the use process convenient.
Smart Images
Figure CN223047447U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pneumatic grouting pumps, and more specifically, to a pneumatic grouting machine for the brick gas ducts in the basement of coke ovens. Background Art
[0002] For traditional spraying, pressure drop, and grouting of the brick gas ducts in the basement of coke ovens, a spraying tank is used. First, the slurry is poured into the tank, then the spraying tank is sealed, and finally compressed air is introduced to spray the air and the material together. Such an operation requires that there be no particulate matter in the slurry to affect the operation performance of the material. Moreover, it is very difficult to control the spraying amount and height of the sprayed material, continuous operation is not possible, stopping and feeding cannot be done at any time, only thin slurry can be sprayed, and it is very difficult to quantitatively output the slurry by such an operation method. Therefore, the traditional spraying method using a spraying tank has very great limitations. Summary of the Utility Model
[0003] In view of this, the utility model provides a pneumatic grouting machine for the brick gas ducts in the basement of coke ovens, which uses compressed air as the power source, adopts a spiral feeding method, and uses a spiral pushing method to output the slurry. It has a simple structure and is convenient to use, and can enable the slurry to continuously rise in the feeding pipeline and the brick gas ducts of the coke oven and achieve grouting at a fixed height.
[0004] To achieve the above object, the pneumatic grouting machine for the brick gas ducts in the basement of coke ovens provided by the utility model includes that the bottom opening of the storage hopper is connected to the side wall of the spiral feeder, the bottom opening of the storage hopper is communicated with the inner cavity of the spiral feeder, the upper end of the spiral feeder is connected to a pneumatic motor through a differential gearbox, and the lower end is connected to a pump head through a pusher. The spiral feeder and the pusher are connected in a through manner. The spiral feeder includes a first outer shell and a first rotating shaft. A spiral blade is provided on the outer side wall of the first rotating shaft. The spiral blade continuously extends in a spiral shape from one end of the side wall of the first rotating shaft to the other end of the side wall of the first rotating shaft. A central rotating shaft is slidably arranged axially inside the first rotating shaft. The pusher includes a second outer shell and a screw rod. The screw rod is arranged axially along the second outer shell.
[0005] Preferably, the screw rod is an eccentric spiral body structure, and a spiral groove with a double-thread spiral surface is provided on the inner wall of the second outer shell. When the screw rod rotates around its own axis, it rolls along the inner surface of the spiral groove.
[0006] Preferably, a differential transmission component that is tooth-connected to the output shaft of the pneumatic motor and tooth-connected to the central rotating shaft is provided inside the differential gearbox. An output gear that is tooth-connected to the differential transmission component is provided on the output shaft of the pneumatic motor. A first transmission gear and a second driven gear that are tooth-connected to the differential transmission component are rotatably arranged at one end of the central rotating shaft located inside the differential gearbox. A differential conversion gear fixedly sleeved on the central rotating shaft is coaxially arranged between the first driven gear and the second driven gear.
[0007] Preferably, the differential drive assembly includes a drive gear, a first differential gear, and a second differential gear. The drive gear is in tooth engagement with the output gear, the first differential gear is in tooth engagement with the first driven gear, and the second differential gear is in tooth engagement with the second driven gear. The drive gear, the first differential gear, and the second differential gear are coaxially and relatively fixedly connected by a transmission shaft. Both ends of the transmission shaft extend to two opposite inner side walls of the differential case and are rotatably connected to the inner side walls of the differential case.
[0008] Preferably, a shift lever is slidably connected to the side wall of the differential change gear. One end of the shift lever is provided with a sliding block, and the other end is provided with a shift block. The sliding block is slidably connected to a sliding groove provided in the side wall of the differential change gear, and the shift block is slidably connected to a groove provided in the outer side wall of the differential case.
[0009] Preferably, a limiting strip is provided on one of the side wall of one end of the central rotating shaft located inside the first rotating shaft and the inner wall of the first rotating shaft, and a limiting groove corresponding to the limiting strip is provided on the other. The limiting strip can slide along the limiting groove, and both the limiting strip and the limiting groove are arranged along the axial direction of the central rotating shaft.
[0010] Preferably, the feed port of the pump head is connected and communicated with the discharge port of the pusher. The discharge port of the pump head is connected to a material conveying rubber hose by a pipe, and the side wall of the pump head is connected to a ventilation pipe opening upward by a pipe.
[0011] According to the above technical solutions, compared with the prior art, the beneficial effects of the present utility model are as follows:
[0012] 1. Using a pneumatic motor as the power source, it can be used in any space of the coke oven, which is safer and more reliable than the traditional electric motor power source;
[0013] 2. The equipment is small and can control different speeds through the differential case, enabling the spraying of slurries with different viscosities and particle sizes. Whether it is a thin slurry or a relatively viscous granular material, it can be used;
[0014] 3. Using a pusher to gradually push and extrude the slurry can make the slurry continuously rise in the material conveying pipeline and the gas channel of the coke oven bricks, realizing continuous grouting work at a fixed height and enabling the slurry to maintain a certain time at a certain height;
[0015] 4. The pneumatic grouting machine can be stopped at any time, and the slurry can be replenished at any time during the process, making the use process very convenient. Description of the Drawings
[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.
[0017] Figure 1 The utility model is a schematic diagram of the assembly of a pneumatic grouting machine for a brick gas duct in a coke oven basement.
[0018] Figure 2 It is a cross-sectional view of the connection between the first rotating shaft and the central rotating shaft of the utility model.
[0019] Figure 3 It is a schematic diagram of the internal structure of the differential case of the utility model.
[0020] In the figure, there are a storage hopper 1, a screw feeder 2, a pusher 3, a pump head 4, a feed hose 5, a ventilation pipe 6, a differential case 7, a pneumatic motor 8, a first housing 21, a first rotating shaft 22, a spiral blade 23, a central rotating shaft 24, a first driven gear 241, a second driven gear 242, a differential conversion gear 243, a toggle rod 25, a toggle block 251, a second housing 31, a screw 32, a first differential gear 71, a second differential gear 72, a transmission shaft 73, a transmission gear 78, a groove 79, and an output gear 81. DETAILED DESCRIPTION
[0021] 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.
[0022] Please see attached Figures 1-3 , is a pneumatic grouting machine for the brick gas duct of the coke oven basement disclosed by the utility model.
[0023] The pneumatic grouting machine for the brick gas duct in the coke oven basement provided by the utility model adopts a vertical structure, including a storage hopper 1, a screw feeder 2, a pusher 3, a pump head 4, a differential gearbox 7 and a pneumatic motor 8. The bottom opening of the storage hopper 1 is connected to the side wall of the screw feeder 2 and communicates with the inner cavity of the screw feeder 2. The upper end of the screw feeder 2 is connected to the pneumatic motor 8, and the lower end is connected to the pump head 4 through the pusher 3. The screw feeder 2 and the pusher 3 are connected through. The screw feeder 2 includes a first outer shell 21 and a first rotating shaft 22. A spiral blade 23 is provided on the outer side wall of the first rotating shaft 22. The spiral blade 23 continuously extends in a spiral shape from one end of the side wall of the first rotating shaft 22 to the other end of the side wall of the first rotating shaft 22. A central rotating shaft 24 is slidably arranged axially inside the first rotating shaft 22. The pusher 3 includes a second outer shell 31 and a screw 32. The screw 32 is arranged along the axis of the second outer shell 31.
[0024] Power is provided by the pneumatic motor 8. The pneumatic motor 8 serves as a power source and transmits power to the screw feeder 2 and the pusher 3. By adjusting the rotation speed of the pneumatic motor 8, the feeding capacity and pressure of the screw feeder 2 and the pusher 3 can be controlled. The output rotation speed of the pneumatic motor 8 is adjusted by the flow rate of compressed air, which can ensure the safe use of the grouting machine in the gas area. Moreover, it can be stopped at any time, and the slurry can be replenished at any time during the process, making the use process very convenient. When in use, first add the slurry into the storage funnel 1, then the slurry flows into the inner cavity of the screw feeder 2 through the bottom opening of the storage funnel 1, and then is sent into the pusher 3 under the rotation of the spiral blade 23. The screw 32 is an eccentric spiral body structure, and the inner wall of the second outer shell 31 is provided with a spiral groove with a double-threaded spiral surface on the surface. When the screw 32 rotates around its own axis, it rolls along the inner surface of the spiral groove. Therefore, a local sealed chamber is formed in the pusher 3. For each revolution of the screw 32, the slurry in the sealed chamber advances one pitch forward. With the continuous rotation of the screw 32, the sealed chamber in the pusher 3 forms a continuously changing volume difference, and the slurry is pressed from one sealed chamber to another in a spiral manner and finally extruded from the pusher.
[0025] Preferably, the screw feeder 2 is connected to the pneumatic motor 8 through the differential gearbox 7. The differential gearbox 7 can change the speed transmission ratio between the pneumatic motor 8 and the screw feeder 2. By controlling the different rotation speeds of the screw feeder 2, the grouting machine can be applicable to both thin slurries and relatively viscous granular materials. Coupled with the use of a pusher to continuously extrude the slurry, the slurry continuously rises in the feeding pipeline and the brick gas duct of the coke oven, realizing continuous grouting work at a fixed height and enabling the slurry to maintain a certain time at a certain height.
[0026] Inside the differential gearbox 7, there is a differential drive assembly. The output shaft of the pneumatic motor 8 and the central rotating shaft 24 of the screw feeder 2 are both engaged with the differential drive assembly. The output shaft of the pneumatic motor 8 is provided with an output gear 81 engaged with the differential drive assembly. One end of the central rotating shaft 24 located inside the differential gearbox 7 is rotatably provided with a first driven gear 241 and a second driven gear 242 engaged with the differential drive assembly. A differential conversion gear 243 fixedly sleeved on the central rotating shaft 24 is coaxially arranged between the first driven gear 241 and the second driven gear 242. Thus, the pneumatic motor 8 transmits power to the central rotating shaft 24 of the screw feeder 2 through the differential drive assembly, so that the speed transmission ratio between the pneumatic motor 8 and the screw feeder 2 can be controlled by the differential drive mechanism, and different speeds of the central rotating shaft 24 can be adjusted.
[0027] It should be noted that both the first driven gear 241 and the second driven gear 242 are provided with teeth meshing with the teeth of the differential conversion gear 243 on the side close to the differential conversion gear 243. By controlling the meshing of the differential conversion gear 243 with the first driven gear 241 or the second driven gear 242, different values of the transmission ratio are transmitted to the central rotating shaft 24, and the adjustment of the speed of the central rotating shaft 24 is realized.
[0028] Specifically, the differential drive assembly includes a transmission gear 78, a first differential gear 71, and a second differential gear 72. The transmission gear 78 is engaged with the output gear 81. The first differential gear 71 is engaged with the first driven gear 241. The second differential gear 72 is engaged with the second driven gear 242. The transmission gear 78, the first differential gear 71, and the second differential gear 72 are coaxially and relatively fixedly connected by a transmission shaft 73. Both ends of the transmission shaft 73 extend to two opposite inner side walls of the differential gearbox 7 and are rotatably connected to the inner side walls of the differential gearbox 7.
[0029] A shift lever 25 is slidably connected to the side wall of the differential conversion gear 243. One end of the shift lever 25 is provided with a sliding block, and the other end is provided with a shift block 251. The sliding block is slidably connected to a sliding groove provided in the side wall of the differential conversion gear 243, and the shift block 251 is slidably connected to a groove 79 provided in the outer side wall of the differential gearbox 7.
[0030] It should be noted that the sliding block can be in the structure of a square block or a sphere. The sliding groove provided in the side wall of the differential conversion gear 243 is a groove body adapted to the shape of the sliding block. Lubricant is provided in the sliding groove to reduce the friction between the sliding block and the sliding groove. Or the outer side wall of the differential conversion gear 243 adopts a bearing rotation structure, as long as the relative rotation between the shift lever 25 and the differential conversion gear 243 can be realized.
[0031] It should be noted that a fixing component is provided between the toggle block 251 and the groove 79. The purpose is to temporarily fix the position of the toggle block 251 when the differential change gear 243 is engaged with the first driven gear 241 or the second driven gear 242, so as to prevent the differential change gear 243 from being disengaged from the meshing connection with the first driven gear 241 or the second driven gear 242. The fixing component here can be a snap-on component, an interference fit component, etc., as long as it can achieve the temporary fixation of the relative position of the toggle block 251, and no specific limitation is made here.
[0032] The side wall of one end of the central rotating shaft 24 located inside the first rotating shaft 22 and the inner wall of the first rotating shaft 22, one of which is provided with a limit bar, and the other is provided with a limit groove corresponding to the limit bar, the limit bar can slide along the limit groove, and the limit bar and the limit groove are both arranged along the axial direction of the central rotating shaft. The limit bar and the limit groove cooperate with each other to prevent the relative rotation between the central rotating shaft 24 and the first rotating shaft 22, but enable the central rotating shaft 24 and the first rotating shaft 22 to perform telescopic movement.
[0033] The feed port of the pump head 4 is connected and communicated with the discharge port of the pusher 3, the discharge port of the pump head 4 is connected with a feed hose 5, and the side wall of the pump head 5 is connected with a ventilation pipe 6 opening upward. Specifically, when grouting the brick gas duct, the ventilation pipe 6 does not need to be ventilated and can be blocked with a wire head. After grouting, compressed air can be introduced into the ventilation pipe 6 to blow and clean the pipeline. In addition, when using the grouting machine to spray other parts of the coke oven, it is necessary to introduce compressed air with a pressure greater than 0.4MPa into the ventilation pipe 6. While the spiral feeder delivers the material, the compressed air can increase the discharge speed and injection force of the material, and at the same time, the slurry can be broken up so that the material can better enter the repair gap and evenly cover the repair part.
[0034] It should be noted that the starting grouting machine in the utility model is not only suitable for grouting of coke oven brick gas ducts, but can also be used for spraying operations in any part of the coke oven, such as exhaust gas trays, heat storage chamber sealing walls, carbonization chamber furnace walls, furnace shoulder frame seams, risers, etc., and has a very wide range of applications.
[0035] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A pneumatic grouting machine for the gas duct of the coke oven basement brick, characterized in that: The invention comprises a storage hopper (1) whose bottom opening is connected to the side wall of a screw feeder (2), wherein the bottom opening of the storage hopper (1) is connected to the inner cavity of the screw feeder (2), wherein the upper end of the screw feeder (2) is connected to an air motor (8) via a differential case (7), and the lower end of the screw feeder (2) is connected to a pump head (4) via a pusher (3), wherein the screw feeder (2) and the pusher (3) are connected in a through manner, wherein the screw feeder (2) comprises a first housing (21) and a first rotating shaft (22), wherein the outer wall of the first rotating shaft (22) is provided with a spiral blade (23), wherein the spiral blade (23) continuously extends in a spiral shape from one end of the side wall of the first rotating shaft (22) to the other end of the side wall of the first rotating shaft (22), wherein a central rotating shaft (24) is provided inside the first rotating shaft (22) so as to slide axially, and wherein the pusher (3) comprises a second housing (31) and a screw rod (32), wherein the screw rod (32) is arranged axially along the second housing (31).
2. The pneumatic grouting machine for the gas duct of the coke oven basement brick according to claim 1 is characterized in that: The screw (32) is an eccentric spiral structure, and the inner wall of the second shell (31) is provided with a screw groove with a double-line spiral surface. When the screw (32) rotates around its own axis, it rolls along the inner surface of the screw groove.
3. The pneumatic grouting machine for the gas duct of the coke oven basement brick according to claim 1, characterized in that: The differential case (7) is internally provided with an output shaft of the pneumatic motor (8) and a differential transmission assembly which is gear-connected to the central rotating shaft (24); the output shaft of the pneumatic motor (8) is provided with an output gear (81) which is gear-connected to the differential transmission assembly; one end of the central rotating shaft (24) located in the differential case (7) is rotatably provided with a first driven gear (241) and a second driven gear (242) which are gear-connected to the differential transmission assembly; a differential conversion gear (243) which is coaxially provided and fixedly sleeved on the central rotating shaft (24) is provided between the first driven gear (241) and the second driven gear (242).
4. The pneumatic grouting machine for the gas duct of the coke oven basement brick according to claim 3 is characterized in that: The differential transmission assembly comprises a transmission gear (78), a first differential gear (71) and a second differential gear (72); the transmission gear (78) is tooth-connected to an output gear (81); the first differential gear (71) is tooth-connected to a first driven gear (241); the second differential gear (72) is tooth-connected to a second driven gear (242); the transmission gear (78), the first differential gear (71) and the second differential gear (72) are coaxially relatively fixedly connected via a transmission shaft (73); two ends of the transmission shaft (73) extend to two opposite inner side walls of a differential case (7) and are rotationally connected to the inner side walls of the differential case (7).
5. The pneumatic grouting machine for the gas duct of the coke oven basement brick according to claim 3, characterized in that: The side wall of the differential conversion gear (243) is slidably connected to a toggle rod (25), one end of the toggle rod (25) is provided with a sliding block, and the other end is provided with a toggle block (251), the sliding block is slidably connected to a sliding groove provided in the side wall of the differential conversion gear (243), and the toggle block (251) is slidably connected to a groove (79) provided on the outer side wall of the differential case (7).
6. The pneumatic grouting machine for the gas duct of the coke oven basement brick according to claim 1, characterized in that: The central rotating shaft (24) is located at a side wall at one end of the first rotating shaft (22) and an inner wall of the first rotating shaft (22), one of which is provided with a limit strip, and the other is provided with a limit groove corresponding to the limit strip, the limit strip can slide along the limit groove, and the limit strip and the limit groove are both arranged along the axial direction of the central rotating shaft.
7. The pneumatic grouting machine for the gas duct of the coke oven basement brick according to claim 1, characterized in that: The feed inlet of the pump head (4) is connected to and communicates with the discharge port of the pusher (3), the discharge port of the pump head (4) is connected to a feed hose (5), and the side wall of the pump head (4) is connected to a ventilation pipe (6) opening upward.