Grouting device for sealing vertical brick gas passage
By using a high-capacity, low-flow mud pump, overflow spraying, and return sleeve design, the problem of mud spraying blockage was solved, ensuring the grouting effect and quality, and ensuring precise control of the grouting height.
Patent Information
- Application Number
- CN202520414529.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-03-11
AI Technical Summary
Traditional grouting sealing methods can easily lead to slurry spraying that blocks the gas duct and the upper lamp head, and cannot effectively control the grouting height, affecting the grouting effect and quality.
By employing a high-capacity, low-flow mud pump, an overflow spraying device, and a measuring device, combined with a sliding device, and through the design of overflow spraying and return sleeve, uniform mud diffusion and control of grouting height are achieved, thus avoiding spray blockage.
This effectively prevents mud spray from clogging the gas duct and the upper lamp head, ensuring grouting effect and quality, and achieving precise control of grouting height.
Smart Images
Figure CN223879675U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to coal gas channel grouting technical field, concretely relates to a kind of grouting device for vertical brick coal gas channel sealing. BACKGROUND
[0002] In coking industry, vertical brick coal gas channel is the important component in heating system, and grouting sealing of vertical brick coal gas channel is the key step to ensure the good operation of heating system. The traditional grouting sealing adopts air pressure tank-like grouting machine, which pushes the slurry in tank to vertical brick coal gas channel several meters high by artificial observation of pressure gauge and compressed air, to seal leakage point. However, this grouting sealing method has some defects. Firstly, due to the difference of vertical brick coal gas channel pipe of different furnace type, the amount of slurry injected into vertical brick coal gas channel is controlled by experience by opening and closing ball valve of grouting tank pressure gauge, which is prone to overpressure and causes slurry column to be broken and form jet, causing the upper lamp head of vertical brick coal gas channel to be blocked. Secondly, the grouting head is vertical tubular structure with open top, which is prone to slurry jet blockage of coal gas channel due to pressure control failure. Moreover, the internal part of vertical brick coal gas channel cannot be directly observed, so the height of grouting cannot be effectively controlled, affecting the grouting effect and quality.
[0003] Therefore, there is a need for a grouting device for vertical brick coal gas channel sealing, which can avoid slurry jet blockage of coal gas channel and its upper lamp head, and effectively control the height of grouting. CONTENT OF UTILITY MODEL
[0004] The utility model aims to provide a kind of grouting device for vertical brick coal gas channel sealing, which can effectively avoid slurry jet blockage of coal gas channel and its upper lamp head, and effectively control the height of grouting, to ensure grouting effect and quality.
[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is:
[0006] The utility model discloses a grouting device for vertical brick gas channel sealing, which comprises a box body capable of containing slurry, an open top end of the box body and provided with a flip cover on the opening, a high-range low-flow slurry pump arranged in the box body, an overflow jet grouting device with the lower end connected with the slurry pump in the box body and the upper end penetrating through the top of the box body and extending out of the box body, a sliding device vertically arranged on the outer wall of the box body and close to the top opening, a measuring device rotatably connected with the sliding device and capable of injecting slurry into the box body through the top opening after measuring the slurry, and a displacement device for carrying the box body.
[0007] Further improvement of the utility model technical scheme is that the sliding device comprises a sliding rail vertically arranged on the outer wall of the box body and extending upward to the top opening, and a sliding block slidingly arranged on the sliding rail.
[0008] Further improvement of the utility model technical scheme is that the measuring device comprises a bracket horizontally arranged on the outer wall of the box body below the sliding rail, and a graduated measuring cup placed on the bracket, wherein the outer wall close to the upper end opening of the graduated measuring cup is hinged to the top of the sliding block through a rotating shaft, and when the graduated measuring cup measures the slurry, the graduated measuring cup moves upward along the sliding rail through the sliding block and rotates to an inclined state through the rotating shaft to inject the slurry into the box body.
[0009] Further improvement of the utility model technical scheme is that the bottom of the slurry pump is connected with the box body through a plurality of fixing bolts, and the slurry pump is connected with the inner walls of the two sides of the box body through a fixer sleeved on the middle part.
[0010] Further improvement of the utility model technical scheme is that the fixer comprises two symmetrically arranged semicircular clamping rings and a connecting screw rod horizontally arranged on each semicircular clamping ring, wherein one end of the connecting screw rod is connected with the outer wall of the semicircular clamping ring, and the other end is connected with the inner wall of one side of the box body.
[0011] Further improvement of the utility model technical scheme is that one end of the two semicircular clamping rings is hinged through a pin shaft, and the other end of the two semicircular clamping rings is connected through a connecting buckle, and the two semicircular clamping rings can be sleeved on the slurry pump after being combined.
[0012] The further improvement of the utility model technical scheme lies in that: the inner wall of the box body is provided with a mark line indicating the minimum suction amount of the mud pump, and the bottom of the mud pump is provided with a suction port below the mark line; the bottom of the box body is provided with a discharge port and a discharge valve on the discharge port; and control valves for controlling the opening and closing of the shunt pipe and the upper end port of the discharge pipe are respectively arranged on the shunt pipe and the upper end port of the discharge pipe.
[0013] The further improvement of the utility model technical scheme lies in that: a scale float is arranged in the box body, and the scale float comprises a scale float rod with a float ball at the upper end and penetrating through the top of the box body to extend into the box body.
[0014] The further improvement of the utility model technical scheme lies in that: the displacement device comprises a vehicle frame arranged below the box body and vehicle wheels symmetrically arranged on the vehicle frame.
[0015] The further improvement of the utility model technical scheme lies in that: the mud pump is a three-cylinder plunger type mud pump or a screw type high-pressure mud pump.
[0016] Thanks to the above technical scheme, the utility model has the following technical progress:
[0017] The grouting device for sealing the vertical brick gas channel can effectively avoid the mud jet from blocking the gas channel and the upper lamp head thereof and effectively control the height to which the grouting reaches, thereby ensuring the grouting effect and quality.
[0018] The overflow jet grouting device comprises a mud pump connected with a discharge pipe penetrating through the top of the box body to extend outside the box body at the lower end in the box body and a jet grouting machine head arranged on the upper end of the discharge pipe and communicated with the discharge pipe, and a plurality of jet grouting holes are circumferentially arranged on the upper pipe wall of the jet grouting machine head, and a conical plug is arranged on the top of the jet grouting machine head, so that the grouting can be performed in the overflow full-penetration mode, the mud pump transmits the mud to the jet grouting machine head through the discharge pipe, the mud is jetted out from the plurality of jet grouting holes on the upper pipe wall of the jet grouting machine head to perform the grouting sealing on the leakage points of the vertical brick gas channel, and the use of the high-range low-flow mud pump can make the mud uniformly diffuse, reduce the local flow rate, make the mud level slowly rise and penetrate into the leakage points of the vertical brick gas channel, and effectively avoid the mud from splashing to the upper part of the gas channel or the lamp head area due to the excessively high pressure.
[0019] The overflow jet grouting device comprises a mud pump connected with a discharge pipe penetrating through the top of the box body to extend outside the box body at the lower end in the box body and a jet grouting machine head arranged on the upper end of the discharge pipe and communicated with the discharge pipe, and a plurality of jet grouting holes are circumferentially arranged on the upper pipe wall of the jet grouting machine head, and a conical plug is arranged on the top of the jet grouting machine head, so that the grouting can be performed in the overflow full-penetration mode, the mud pump transmits the mud to the jet grouting machine head through the discharge pipe, the mud is jetted out from the plurality of jet grouting holes on the upper pipe wall of the jet grouting machine head to perform the grouting sealing on the leakage points of the vertical brick gas channel, and the use of the high-range low-flow mud pump can make the mud uniformly diffuse, reduce the local flow rate, make the mud level slowly rise and penetrate into the leakage points of the vertical brick gas channel, and effectively avoid the mud from splashing to the upper part of the gas channel or the lamp head area due to the excessively high pressure.
[0020] The high-range low-flow mud pump is matched with the measuring device and the sliding device, the total volume of the required mud is calculated, the prepared mud is measured by the graduated measuring cup, the graduated measuring cup is taken by the operator and is moved upwards along the slide rail, the graduated measuring cup is rotated to be in an inclined state by the rotating shaft, the mud is injected into the box body from the top opening of the box body, the mud pump is started until the mud is pumped out, at this time, the mud liquid level reaches the set grouting highest position, so that the height of the effective grouting is controlled, and the grouting effect and quality are ensured. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 is the plane structure schematic view of the grouting device of the utility model;
[0022] Figure 2 is the side structure schematic view of the grouting device of the utility model;
[0023] Figure 3 is the side structure schematic view of the grouting device of the utility model when the graduated measuring cup grouting state;
[0024] 1, box body, 2, mud pump, 3, connecting pipe, 4, mud spraying machine head, 4-1, mud spraying hole, 5, discharge pipe, 6, reflux sleeve pipe, 6-1, shunt pipe, 7, discharge port, 8, graduated float, 8-1, graduated float rod, 8-2, float ball, 9, fixing bolt, 10, semicircular clasp ring, 11, connecting screw rod, 12, slide rail, 13, sliding block, 14, support, 15, graduated measuring cup, 16, rotating shaft, 17, mark line, 18, discharge valve, 19, suction port, 20, vehicle frame, 21, wheel. DETAILED DESCRIPTION
[0025] The utility model will be further explained in detail in combination with examples:
[0026] For example, Figure 1 And Figure 2As shown, this utility model provides a grouting device for sealing vertical brick gas ducts, including a tank 1 for holding slurry, a high-capacity, low-flow slurry pump 2, an overflow spraying device, a sliding device, a measuring device, and a displacement device supporting the tank 1. The tank 1 has an opening at one end of its top, with a flap over the opening. The flap can be used to open or close the opening at the top of the tank 1 to inject slurry into it. The tank 1 also has a discharge port 7 at its bottom, with a discharge valve 18 to release the slurry from the tank 1 after grouting. Furthermore, the inner wall of the tank 1 has a marking line 17 indicating the minimum suction capacity of the slurry pump 2. The mud pump 2 is located inside the housing 1 and is used to extract mud from the housing 1. The switch for the mud pump 2 is located outside the housing 1. Preferably, the mud pump 2 is a three-cylinder plunger mud pump or a screw high-pressure mud pump. The bottom of the mud pump 2 is provided with a suction port 19 located below the marking line 17 for better mud intake. The overflow spraying device is a vertically arranged tubular structure. The lower end of the overflow spraying device is connected to the mud pump 2 inside the housing 1, and the upper end of the overflow spraying device extends out of the housing 1 through the top of the housing 1. After the mud pump 2 extracts mud from the housing 1, the overflow spraying device transports the mud to the leak point of the vertical brick gas duct. The sliding device is vertically arranged on one side of the outer wall of the housing 1 and close to the top opening of the housing 1. The measuring device is rotatably connected to the sliding device. After measuring the mud, the measuring device can move upward under the action of the sliding device and rotate to an inclined state to inject mud into the housing 1 through the top opening. The displacement device includes a frame 20 located below the housing 1 and wheels 21 symmetrically arranged on the frame 20, which facilitates moving the housing 1 to the vertical brick gas duct.
[0027] To better observe the mud level inside the tank 1, a graduated float 8 is installed inside the tank 1. The graduated float 8 includes a graduated float rod 8-1 and a float ball 8-2. The float ball 8-2 is located at the upper end of the graduated float rod 8-1, and the lower end of the graduated float rod 8-1 extends through the top of the tank 1 and into the tank 1.
[0028] In order to carry out grouting by overflow full-penetration, the overflow grouting device comprises a discharge pipe 5, a grouting head 4 and a backflow sleeve 6. The lower end of the discharge pipe 5 is connected to the mud pump 2 in the box 1 through the connecting pipe 3, and the upper end of the discharge pipe 5 penetrates through the top of the box 1 and extends out of the box 1. The grouting head 4 is arranged at the upper end of the discharge pipe 5, and the grouting head 4 communicates with the discharge pipe 5. The backflow sleeve 6 is sleeved on the lower part of the grouting head 4, and the inner diameter of the backflow sleeve 6 is larger than the outer diameter of the grouting head 4, so that an annular backflow cavity is formed between the backflow sleeve 6 and the grouting head 4. The upper end of the annular backflow cavity is open, and the lower end of the annular backflow cavity is sealed. The upper end of the annular backflow cavity between the backflow sleeve 6 and the grouting head 4 is in an open state, and the lower end of the annular backflow cavity is in a sealed state. The side wall of the backflow sleeve 6 is provided with a shunt pipe 6-1 which communicates with the annular backflow cavity of the backflow sleeve 6. The upper part of the grouting head 4 is provided with a plurality of uniformly arranged grouting holes 4-1 which are circumferentially arranged on the upper part of the grouting head 4 which extends out of the backflow sleeve 6. The top of the grouting head 4 is provided with a conical plug.
[0029] When the grouting plugging is carried out on the leakage point of the vertical brick gas channel, the mud pump 2 pumps mud into the discharge pipe 5 through the connecting pipe 3, and then the mud is transmitted to the grouting head 4 through the discharge pipe 5. Since the top of the grouting head 4 is conically plugged, the mud is sprayed out of the grouting head 4 through the plurality of grouting holes 4-1 on the upper wall of the grouting head 4 to carry out grouting plugging on the leakage point of the vertical brick gas channel. In combination with the use of the high-range low-flow mud pump 2, the mud is uniformly diffused, the local flow rate is reduced, the mud level is slowly raised and seeps into the leakage point of the vertical brick gas channel, and the mud is effectively prevented from splashing to the upper part of the gas channel or the lamp head area due to excessive pressure. After the plugging is completed, the remaining mud in the grouting head 4 can enter the annular backflow cavity between the backflow sleeve 6 and the grouting head 4, and then be discharged through the shunt pipe 6-1, thereby avoiding backflow of the mud.
[0030] In order to facilitate operation, control valves for controlling the opening and closing of the shunt pipe 6-1 and the upper end port of the discharge pipe 5 are respectively arranged on the shunt pipe 6-1 and the upper end port of the discharge pipe 5. When the grouting plugging is carried out on the leakage point of the vertical brick gas channel, the control valve on the shunt pipe 6-1 is closed, and the control valve on the upper end port of the discharge pipe 5 is opened. The mud pump 2 pumps mud into the discharge pipe 5 through the connecting pipe 3, and then the mud is transmitted to the grouting head 4 through the discharge pipe 5. Since the top of the grouting head 4 is conically plugged, the mud is sprayed out of the grouting head 4 through the plurality of grouting holes 4-1 on the upper wall of the grouting head 4 to carry out grouting plugging on the leakage point of the vertical brick gas channel. After the plugging is completed, the control valve on the shunt pipe 6-1 is opened, and the control valve on the upper end port of the discharge pipe 5 is closed. The remaining mud in the grouting head 4 enters the annular backflow cavity formed between the backflow sleeve 6 and the grouting head 4, and then is discharged through the shunt pipe 6-1, thereby avoiding backflow of the mud.
[0031] As Figure 2 and Figure 3 shown, in order to accurately measure the required mud and convenient and fast injection of mud into the box 1, the sliding device includes a slide rail 12 and a sliding block 13, wherein the slide rail 12 is vertically disposed on the side wall of the box 1 and extends upward to the top opening of the box 1, and the sliding block 13 is slidably disposed on the slide rail 12. The measuring device includes a bracket 14 and a graduated measuring cup 15, wherein the bracket 14 is horizontally disposed on the outer wall of the box 1 below the slide rail 12, i.e. the bracket 14 is horizontally disposed on the outer wall of the box 1 below the slide rail 12, and the graduated measuring cup 15 is placed on the bracket 14. And the outer wall near the upper end opening of the graduated measuring cup 15 is hinged to the top of the sliding block 13 through the pivot 16, so that the graduated measuring cup 15 can rotate around the pivot 16 at the top of the sliding block 13.
[0032] According to the pipe diameter and length of the vertical brick gas channel, the pipe diameter and length of the discharge pipe 5, the pipe diameter and length of the gunning machine head 4, and considering the vertical lift from the bottom of the mud pump 2 to the highest point of grouting, the total volume of the required mud is calculated. After the mud is poured into the box 1 at the mark line 17, i.e. the lowest suction volume of the mud pump 2, the prepared mud is measured with the graduated measuring cup 15, the operator can take the graduated measuring cup 15 and move it upward along the slide rail 12 through the sliding block 13, and turn the graduated measuring cup 15 to an inclined state through the pivot 16, inject mud into the box 1 through the top opening of the box 1, then start the mud pump 2 until the mud is pumped out, at this time the mud level reaches the set highest grouting position, thereby effectively controlling the height of grouting and ensuring the grouting effect and quality.
[0033] Further, in order to fix the mud pump 2 and prevent the mud pump 2 from tilting, the bottom of the mud pump 2 is connected to the box 1 by a plurality of fixing bolts 9, and the mud pump 2 is connected to the two inner walls of the box 1 by a fixator sleeved on the middle part. Specifically, the fixator is a split structure, including two symmetrical half-round clamping rings 10 and connecting screws 11 horizontally arranged on the two half-round clamping rings 10, respectively, wherein one end of the connecting screw 11 is connected to the outer wall of the half-round clamping ring 10, and the other end is connected to the inner wall of the box 1. Specifically, one end of the two half-round clamping rings 10 is hinged by a pin shaft, and the other end of the two half-round clamping rings 10 is connected by a connecting buckle. The two half-round clamping rings 10 are combined into a ring shape and can be sleeved on the mud pump 2 to prevent it from tilting, wherein the connecting buckle can be a bolt and nut or other buckle with connecting function.
[0034] It can be understood that the utility model is described through some embodiments, and the person skilled in the art knows that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the application belong to the scope protected by the utility model.
Claims
1. A grouting device for sealing of vertical brick flues, characterized in that: The mud containing box (1) includes an open top end and a flip cover on the opening, a high-range low-flow mud pump (2) arranged inside the box (1), an overflow spraying device connected with the mud pump (2) in the box (1) at the lower end and extending out of the box (1) at the upper end, a sliding device vertically arranged on the outer wall of the box (1) and close to the top opening, a measuring device rotatably connected with the sliding device and capable of injecting mud into the box (1) through the top opening after measuring the mud, and a displacement device for carrying the box (1).
2. A grouting device for sealing a vertical brick flue according to claim 1, characterized in that: The sliding device includes a slide rail (12) vertically arranged on the outer wall of the box (1) and extending upward to the top opening, and a sliding block (13) slidingly arranged on the slide rail (12).
3. A grouting device for sealing a vertical brick flue according to claim 2, characterized in that: The measuring device includes a bracket (14) horizontally arranged on the outer wall of the box (1) below the slide rail (12), and a graduated measuring cup (15) placed on the bracket (14), wherein the outer wall close to the upper end opening of the graduated measuring cup (15) is hingedly connected with the top of the sliding block (13) through a rotating shaft (16), and when the graduated measuring cup (15) measures mud, the graduated measuring cup (15) is moved upward along the slide rail (12) through the sliding block (13) and is rotated to an inclined state through the rotating shaft (16) to inject mud into the box (1).
4. A grouting device for sealing a vertical brick flue according to claim 1, characterized in that: The bottom of the mud pump (2) is connected with the box (1) through a plurality of fixing bolts (9), and the mud pump (2) is connected with the two inner walls of the box (1) through a fixator sleeved on the middle part.
5. A grouting device for sealing a vertical brick flue according to claim 4, characterized in that: The fixator includes two symmetrically arranged semicircular clamping rings (10) and a connecting screw rod (11) horizontally arranged on each semicircular clamping ring (10), wherein one end of the connecting screw rod (11) is connected with the outer wall of the semicircular clamping ring (10), and the other end is connected with the inner wall of the box (1).
6. A grouting device for sealing a vertical brick flue according to claim 5, characterized in that: One end of the two semicircular clamping rings (10) is hingedly connected through a pin shaft, and the other end of the two semicircular clamping rings (10) is connected through a connecting buckle, and the two semicircular clamping rings (10) can be sleeved on the mud pump (2) after being combined.
7. A grouting device for sealing a vertical brick flue according to claim 1, characterized in that: The inner wall of the box (1) is provided with a mark line (17) indicating the minimum suction capacity of the mud pump (2), and the bottom of the mud pump (2) is provided with a suction port (19) below the mark line (17); the bottom of the box (1) is provided with a discharge port (7) and a discharge valve (18) arranged on the discharge port (7); the shunt pipe (6-1) and the upper end port of the discharge pipe (5) are respectively provided with control valves for controlling the opening and closing thereof.
8. A grouting device for sealing a vertical brick flue according to claim 1, characterized in that: The box (1) is provided with a scale float (8), which comprises a scale float rod (8-1) with a float ball (8-2) at the upper end penetrating through the top of the box (1) and extending into the box (1).
9. A grouting device for sealing a vertical brick flue according to claim 1, characterized in that: The displacement device comprises a vehicle frame (20) arranged below the box (1) and vehicle wheels (21) arranged symmetrically on the vehicle frame (20).
10. A grouting device for sealing a vertical brick flue according to any one of claims 1 to 9, characterized in that: The mud pump (2) is a three-cylinder plunger type mud pump or a screw type high-pressure mud pump.