阅读说明：本技术 一种煤矿采掘水泥管裂缝修补装置及其修补方法 (Coal mine excavation cement pipe crack repairing device and repairing method thereof ) 是由 不公告发明人 于 2020-06-03 设计创作，主要内容包括：本发明一种煤矿采掘水泥管裂缝修补装置及其修补方法公开了一种能够减小修复面积,对水泥管小面积裂缝,进行简单快速的修复工作的修复装置与修补方法,其特征在于挤压筒和连接杆的一端相连接,刮环置于挤压筒底部,所述刮环的内径从上向下逐渐减小,所述挤压筒顶部为敞口,中套筒套置于挤压筒内,所述中套筒底部为敞口,所述中套筒和挤压筒相连通,所述中套筒内部上开有多个通槽,多个滑动杆的一端等角度置于挤压筒内,所述滑动杆的另一端延伸通槽内,所述通槽内置有弹簧,所述中套筒顶部拱起形成锥形底盘,外水泥筒置于中套筒上,所述外水泥筒分为上、下两段,所述外水泥筒上段的外径大于其下段的外径。(The invention relates to a repairing device and a repairing method for a crack of a cement pipe in coal mine excavation, and discloses a repairing device and a repairing method which can reduce repairing area and carry out simple and quick repairing work on small-area cracks of the cement pipe, and is characterized in that an extrusion cylinder is connected with one end of a connecting rod, a scraping ring is arranged at the bottom of the extrusion cylinder, the inner diameter of the scraping ring is gradually reduced from top to bottom, the top of the extrusion cylinder is open, a middle sleeve is sleeved in the extrusion cylinder, the bottom of the middle sleeve is open, the middle sleeve is communicated with the extrusion cylinder, a plurality of through grooves are formed in the middle sleeve, one ends of a plurality of sliding rods are arranged in the extrusion cylinder at equal angles, the other ends of the sliding rods extend into the through grooves, springs are arranged in the through grooves, the top of the middle sleeve is arched to form a conical chassis, an outer cement cylinder is arranged on the middle sleeve, the outer cement cylinder is divided, the outer diameter of the upper section of the outer cement barrel is larger than that of the lower section of the outer cement barrel.)

1. The utility model provides a colliery is excavated cement pipe crack patching device which characterized by: the device comprises a hanging ring, a connecting rod, an outer cement barrel, a supporting block, a repairing inclined plane, a middle sleeve, an extruding barrel, a supporting sleeve, an auxiliary ring, a wedge-shaped supporting block, a conical base plate, a scraping ring, a sliding rod and a spring, wherein the extruding barrel is connected with one end of the connecting rod, the scraping ring is arranged at the bottom of the extruding barrel, the top of the extruding barrel is open, the middle sleeve is sleeved in the extruding barrel, the bottom of the middle sleeve is open, the middle sleeve is communicated with the extruding barrel, a plurality of through grooves are formed in the middle sleeve, one ends of the sliding rods are arranged in the extruding barrel at equal angles, the other ends of the sliding rods extend into the through grooves, the springs are arranged in the through grooves, the top of the middle sleeve is arched to form the conical base plate, the outer cement barrel is arranged on the middle sleeve, the wedge-shaped supporting block is fixedly arranged on the connecting rod, the wedge-shaped supporting block is arranged in the outer cement barrel, one ends of the supporting blocks, the other end of the bottom supporting block extends towards the central line direction of the outer cement barrel, one end of each supporting sleeve is sleeved on the other end of each supporting block in a one-to-one correspondence mode, a spring is arranged in each supporting sleeve, the other end of each supporting sleeve is an inclined plane, a spring is arranged in each supporting sleeve, each supporting sleeve corresponds to each wedge-shaped supporting block, the auxiliary rings are arranged on the other end of the outer cement barrel in an equidistant mode, and the hanging rings are arranged on the other end of the connecting rod.

2. The coal mine extraction cement pipe crack repairing device as claimed in claim 1, wherein the inner diameter of the scraper ring is gradually reduced from top to bottom.

3. The coal mine excavation cement pipe crack repairing device according to claim 1, characterized in that the outer cement barrel is divided into an upper section and a lower section, and the outer diameter of the upper section of the outer cement barrel is larger than that of the lower section thereof.

4. The coal mine excavation cement pipe crack repairing device as claimed in claim 3, wherein the joint of the upper section and the lower section of the outer cement barrel is a slope.

5. The coal mine excavation cement pipe crack repairing device as claimed in claim 4, wherein the outer diameter of the lower section of the outer cement barrel gradually increases from bottom to top to form a repairing slope.

6. The coal mine excavation cement pipe crack repairing device as claimed in claim 1, wherein a sealing gasket is arranged between the middle sleeve and the extrusion container, and a sealing sleeve is arranged between the connecting rod and the conical bottom plate.

7. The coal mine excavation cement pipe crack repairing device according to claim 1, characterized in that the design of the matching of the wedge-shaped abutting block and the abutting sleeve can limit the upward moving position of the extrusion cylinder, so as to avoid the influence of the extrusion repairing inclined plane on repairing.

8. A method for repairing a crack of a cement pipe in coal mine excavation is characterized by comprising the following steps:

1) pouring a repairing agent for repairing into the outer cement cylinder, and respectively connecting the hanging ring and the auxiliary ring with an external lifting rope;

2) the device is lifted to the position of a crack to be repaired in the cement pipe by lifting the auxiliary ring and the lifting ropes on the hanging rings;

3) fixing a lifting rope on the auxiliary ring, continuously extending the lifting rope on the hanging ring downwards to drive the connecting rod to move downwards, further separating the outer cement barrel from the middle sleeve, opening the bottom of the outer cement barrel, and enabling a part of the repairing agent to flow out and cover two sides of the cement pipe under the guidance of the conical chassis;

4) lifting the lifting rope on the hanging ring to enable the middle sleeve to block the bottom of the outer cement barrel again;

5) and continuously pulling the lifting rope on the hanging ring to enable the extrusion cylinder to overcome the stress of the spring to move upwards, enabling the extrusion cylinder to sleeve the middle sleeve, and extruding the repairing agent between the repairing inclined plane and the cement pipe so as to extrude the repairing agent into the crack of the wall of the cement pipe for repairing.

Technical Field

The invention discloses a device and a method for repairing a crack of a cement pipe in coal mining, relates to a device and a method for repairing the crack of the cement pipe in coal mining, and belongs to the field of coal mine equipment. In particular to a repair device and a repair method which can reduce the repair area and carry out simple and quick repair work on small-area cracks of a cement pipe.

Background

At present, various drilling can be carried out in coal mine excavation, various sleeves or cement pipes are inserted into engineering holes drilled out for drilling and reinforcing, but as time goes on, the cement pipes or the sleeves are easy to crack and break due to abrasion, rock stratum stress deviation and the like, so that the problems of water leakage, gas leakage and the like are caused, and safety threats are brought.

Publication number CN106639946A discloses a mining casing repairing method, which comprises the following steps: step a): selecting a repair pipe with a proper length according to the range of the damaged position of the mining casing pipe; step b): detachably connecting the head end of a drill rod with the head end of the repair pipe, wherein the drill rod is provided with a through hole along the extension direction of the drill rod; step c): inserting the tail end of the repairing pipe into a pipeline of the mining casing pipe, and adjusting the position of the repairing pipe to cover the range of the damaged position; fixedly connecting the outer wall of the tail end of the repairing pipe with the inner wall of the mining casing pipe; step d): through the through-hole pours into the consolidating agent into until the consolidating agent fills the outer wall of repairing the pipe with space between the mining sheathed tube inner wall waits for the consolidating agent solidifies and forms the back up coat, and this sleeve pipe repair mode is comparatively loaded down with trivial details, the quick restoration remedy work of the pipeline small size crack of being not convenient for drilling.

Disclosure of Invention

In order to improve the situation, the repairing device and the repairing method for the crack of the coal mine excavation cement pipe, provided by the invention, can reduce the repairing area and carry out simple and quick repairing work on the small-area crack of the cement pipe.

The invention relates to a coal mine excavation cement pipe crack repairing device which is realized as follows: the invention relates to a coal mine excavation cement pipe crack repairing device and a repairing method thereof, wherein the repairing device comprises a hanging ring, a connecting rod, an outer cement barrel, a supporting block, a repairing inclined plane, a middle sleeve, a squeezing barrel, a supporting sleeve, an auxiliary ring, a wedge-shaped supporting block, a conical chassis, a scraping ring, a sliding rod and a spring, wherein the squeezing barrel is connected with one end of the connecting rod, the scraping ring is arranged at the bottom of the squeezing barrel, the inner diameter of the scraping ring is gradually reduced from top to bottom, the top of the squeezing barrel is open, the middle sleeve is sleeved in the squeezing barrel, the bottom of the middle sleeve is open, the middle sleeve is communicated with the squeezing barrel, a plurality of through grooves are formed in the middle sleeve, one ends of the sliding rods are arranged in the squeezing barrel at equal angles, the other ends of the sliding rods extend into the through grooves, the springs are arranged in the through grooves, the top of the middle sleeve is arched to form the conical chassis, the outer cement barrel is arranged, The outer diameter of the upper section of the outer cement barrel is larger than that of the lower section of the outer cement barrel, the joint of the upper section of the outer cement barrel and the lower section of the outer cement barrel is a slope, the outer diameter of the lower section of the outer cement barrel is gradually increased from bottom to top to form a repair inclined plane, the wedge-shaped supporting blocks are fixedly arranged on the connecting rod and positioned in the outer cement barrel, one ends of the supporting blocks are inserted on the upper section of the outer cement barrel at equal angles, the other ends of the bottom supporting blocks extend towards the central line direction of the outer cement barrel, one ends of the supporting sleeves are sleeved on the other ends of the supporting blocks in a one-to-one correspondence mode, springs are arranged in the supporting sleeves, the other ends of the supporting sleeves are inclined planes, springs are arranged in the supporting sleeves, the supporting sleeves correspond to the wedge-shaped blocks, the auxiliary rings are arranged on the other ends of the outer cement barrel at equal intervals, the hanging rings are arranged on the other ends of the connecting rod, and a sealing gasket is arranged between, a sealing sleeve is arranged between the connecting rod and the conical chassis;

the invention also relates to a method for repairing the crack of the coal mine excavation cement pipe, which is characterized by comprising the following steps:

1) pouring a repairing agent for repairing into the outer cement cylinder, and respectively connecting the hanging ring and the auxiliary ring with an external lifting rope;

2) the device is lifted to the position of a crack to be repaired in the cement pipe by lifting the auxiliary ring and the lifting ropes on the hanging rings;

3) fixing a lifting rope on the auxiliary ring, continuously extending the lifting rope on the hanging ring downwards to drive the connecting rod to move downwards, further separating the outer cement barrel from the middle sleeve, opening the bottom of the outer cement barrel, and enabling a part of the repairing agent to flow out and cover two sides of the cement pipe under the guidance of the conical chassis;

4) lifting the lifting rope on the hanging ring to enable the middle sleeve to block the bottom of the outer cement barrel again;

5) and continuously pulling the lifting rope on the hanging ring to enable the extrusion cylinder to overcome the stress of the spring to move upwards, enabling the extrusion cylinder to sleeve the middle sleeve, and extruding the repairing agent between the repairing inclined plane and the cement pipe so as to extrude the repairing agent into the crack of the wall of the cement pipe for repairing.

Has the beneficial effects.

The method can be used for simply and quickly repairing small-area cracks of the cement pipe.

Secondly, the use and the operation are simple and convenient, the difficulty of small area repair is reduced, and the repair efficiency is improved.

Drawings

FIG. 1 is a three-dimensional structure diagram of a coal mine excavation cement pipe crack repairing device.

FIG. 2 is a schematic structural diagram of the device for repairing the crack of the coal mine excavation cement pipe.

FIG. 3 is a schematic structural diagram of the device for repairing a crack in a coal mine excavation cement pipe.

In the attached drawings

Wherein the method comprises the following steps: the concrete pipe repair device comprises hanging rings (1), connecting rods (2), an outer cement barrel (3), supporting blocks (4), a repair inclined plane (5), a middle sleeve (6), an extrusion barrel (7), a supporting sleeve (8), an auxiliary ring (9), wedge-shaped supporting blocks (10), a conical chassis (11), scraping rings (12), sliding rods (13), springs (14), a repairing agent (15) and a cement pipe wall (16).

The specific implementation mode is as follows:

the invention relates to a coal mine excavation cement pipe crack repairing device which is realized as follows: the invention relates to a coal mine excavation cement pipe crack repairing device and a repairing method thereof, wherein the repairing device comprises a hanging ring (1), a connecting rod (2), an outer cement barrel (3), a support block (4), a repairing inclined plane (5), a middle sleeve (6), an extrusion barrel (7), a support sleeve (8), an auxiliary ring (9), a wedge-shaped support block (10), a conical chassis (11), a scraping ring (12), a sliding rod (13) and a spring (14), wherein the extrusion barrel (7) is connected with one end of the connecting rod (2), the scraping ring (12) is arranged at the bottom of the extrusion barrel (7), the inner diameter of the scraping ring (12) is gradually reduced from top to bottom, the top of the extrusion barrel (7) is open, the middle sleeve (6) is sleeved in the extrusion barrel (7), the bottom of the middle sleeve (6) is open, the middle sleeve (6) is communicated with the extrusion barrel (7), and a plurality of through grooves are formed in the middle sleeve (6), one end of each sliding rod (13) is arranged in the extrusion barrel (7) at an equal angle, the other end of each sliding rod (13) extends into the through groove, a spring (14) is arranged in the through groove, the top of the middle sleeve (6) is arched to form a conical chassis (11), the outer cement barrel (3) is arranged on the middle sleeve (6), the outer cement barrel (3) is divided into an upper section and a lower section, the outer diameter of the upper section of the outer cement barrel (3) is larger than that of the lower section of the outer cement barrel, the joint of the upper section and the lower section of the outer cement barrel (3) is a slope, the outer diameter of the lower section of the outer cement barrel (3) is gradually increased from bottom to top to form a repair inclined plane (5), the wedge-shaped abutting block (10) is fixedly arranged on the connecting rod (2), the wedge-shaped abutting block (10) is arranged in the outer cement barrel (3), one end of each abutting block (4) is inserted in the upper section of the outer cement barrel (3) at an equal angle, and the other end of each bottom abutting block extends towards the, one end of each supporting sleeve is sleeved on the other end of each supporting block (4) in a one-to-one correspondence mode, a spring (14) is arranged in each supporting sleeve, the other end of each supporting sleeve is an inclined plane, a spring (14) is arranged in each supporting sleeve, each supporting sleeve corresponds to each wedge-shaped supporting block (10), a plurality of secondary rings (9) are arranged on the other end of each outer cement barrel (3) in an equidistant mode, each hanging ring (1) is arranged on the other end of each connecting rod (2), a sealing gasket is arranged between each middle sleeve (6) and each extrusion barrel (7), and a sealing sleeve is arranged between each connecting rod (2) and each conical chassis (11);

the invention also relates to a method for repairing the crack of the coal mine excavation cement pipe, which is characterized by comprising the following steps:

1) a repairing agent (15) for repairing is poured into the outer cement barrel (3), and the hanging ring (1) and the auxiliary ring (9) are respectively connected with an external lifting rope;

2) the device is lifted to the position of a crack to be repaired in the cement pipe by lifting the auxiliary ring (9) and the lifting rope on the hanging ring (1);

3) fixing a lifting rope on the auxiliary ring (9), continuously extending the lifting rope on the hanging ring (1) downwards to drive the connecting rod (2) to move downwards, further separating the outer cement barrel (3) from the middle sleeve (6), opening the bottom of the outer cement barrel (3), and allowing a part of repairing agent (15) to flow out and cover the two sides of the cement pipe under the guidance of the conical chassis (11);

4) lifting the lifting rope on the hanging ring (1) to enable the middle sleeve (6) to block the bottom of the outer cement barrel (3) again;

5) continuously pulling the lifting rope on the hanging ring (1) to enable the extrusion cylinder (7) to overcome the stress of the spring (14) to move upwards, enabling the extrusion cylinder (7) to sleeve the middle sleeve (6), and extruding the repairing agent (15) between the repairing inclined plane (5) and the cement pipe, so that the repairing agent (15) is extruded into the crack of the cement pipe wall (16) to be repaired;

due to the design of the scraping ring (12), when the device is extended into the cement pipe, adhesive on the inner wall of the cement pipe can be removed, and subsequent crack repairing work is facilitated;

the inner diameter of the scraping ring (12) is gradually reduced from top to bottom, so that the cleaning effect on the inner wall of the cement pipe is good;

the top of the middle sleeve (6) is arched to form a conical chassis (11), so that the repairing liquid can be guided to flow between the repairing inclined plane (5) and the cement pipe;

the joint of the upper section and the lower section of the outer cement cylinder (3) is designed to be a slope, so that the upper section and the lower section of the outer cement cylinder (3) are stably connected;

the outer diameter of the lower section of the outer cement cylinder (3) is gradually increased from bottom to top to form a repair inclined plane (5), so that a repair agent (15) can be compressed and extruded into a gap to be repaired;

due to the design that a sealing gasket is arranged between the middle sleeve (6) and the extrusion container (7), sealing can be formed between the middle sleeve (6) and the extrusion container (7), and the influence of repair liquid leakage on subsequent extrusion is avoided;

a sealing sleeve is arranged between the connecting rod (2) and the conical chassis (11), so that sealing is formed between the connecting rod (2) and the conical chassis (11), repair liquid is prevented from leaking into the extrusion cylinder (7), and the conical chassis (11) and the connecting rod (2) can slide conveniently;

the wedge-shaped abutting block (10) and the abutting sleeve (8) are matched, so that the upward moving position of the extrusion container (7) can be limited, and the influence of the extrusion and repair of the inclined plane (5) on repair is avoided;

the purposes of reducing the repair area and simply and quickly repairing small-area cracks of the cement pipe are achieved.

The above embodiments are preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that changes may be made without departing from the scope of the invention, and it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.