CN216760360U - Mixer for composite heat preservation intergral template production line - Google Patents

Abstract

The utility model discloses a stirrer for a composite heat-preservation integrated plate production line, which comprises a bottom plate, a top plate and two fixing plates, wherein the top plate is positioned at the top of the bottom plate, the bottom ends of the two fixing plates are respectively and fixedly connected with the two ends of the top of the bottom plate, the top ends of the two fixing plates are respectively and fixedly connected with the two ends of the bottom of the top plate, the two ends of the top plate are respectively provided with a storage mechanism, and the bottom of the top plate is provided with a stirring system. The two first slow motors are arranged, the output shafts of the two first slow motors drive the two driving gears to rotate in the same direction, the two driving gears drive the outer gear ring to rotate, so that the rotating cylinder can be driven to rotate, meanwhile, the output shaft of the second slow motor drives the rotating shaft to rotate in the opposite direction of the rotating cylinder, and meanwhile, the rotating shaft drives the stirring shafts and the stirring blades to rotate.

Description

Mixer for composite heat preservation intergral template production line

Technical Field

The utility model relates to the technical field of stirring, in particular to a stirrer for a composite heat-insulation integrated plate production line.

Background

Before the composite heat-insulation integrated plate is processed, a composite thick-surface mortar layer needs to be bonded on the surface of the composite heat-insulation integrated plate, cement and drying sand need to be used for manufacturing the composite thick-surface mortar layer, then the cement and the drying sand are stirred and mixed, mixed stirrups formed after mixing are accurately weighed, and meanwhile, a container for storing the mixed stirrups needs to be stopped and limited; therefore, a stirrer for a composite heat-insulation integrated plate production line is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a stirrer for a composite heat-insulation integrated plate production line, which aims to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a mixer for compound incubation intergral template production line, includes a bottom plate, a roof and two fixed plates, the roof is located the top of bottom plate, two the bottom of fixed plate respectively with the both ends fixed connection at bottom plate top, two the top of fixed plate respectively with the both ends fixed connection of roof bottom, the both ends at roof top all are provided with storage mechanism, storage mechanism includes storage tank, electromagnetic flowmeter, the first row's of taking the solenoid valve from material pipe and notes material pipe, the bottom of roof is provided with mixing system, mixing system includes interim storage mechanism, slewing mechanism and rabbling mechanism, interim storage mechanism includes first backup pad, rotor and solid fixed ring, slewing mechanism includes two first slow speed motors, two drive gears and an external gear ring, rabbling mechanism includes second backup pad, two backup pads, two fixed plates, The bottom plate comprises a bottom plate and a bottom plate, wherein the bottom plate is provided with a bottom plate, the bottom plate is provided with a rotating shaft, the bottom plate is provided with a bottom plate, the bottom plate is provided with a bottom plate, the bottom plate is provided with a fixing block, the bottom plate is provided with a bottom plate, the bottom plate is provided with a fixing block hinge, and a fixing block, and a connecting rod hinge, the bottom plate is provided with two movable joint hinge, the bottom plate, and a two movable joint hinge, the bottom plate, and a two movable joint hinge, the bottom.

Preferably, the storage tank is fixed at one end of the top plate, the material injection pipe is fixedly inserted at the top end of the storage tank, the top end of the first material discharge pipe penetrates through the second supporting plate and is fixedly inserted at the bottom end of the storage tank, and the electromagnetic flow meter is sleeved at the middle part of the first material discharge pipe.

Preferably, temporary storage mechanism still includes the universal wheel and arranges the material pipe from taking the solenoid valve second, the both ends of first backup pad respectively with the middle part fixed connection of two fixed plate relative one side, the bottom of rotating the section of thick bamboo runs through first backup pad, the second is arranged the material fixed bottom of pegging graft at rotating the section of thick bamboo of managing, circular spacing groove has been seted up to the edge on first backup pad top, the fixed cover of retainer ring is established at the surface of rotating the section of thick bamboo middle part, the universal wheel has a plurality of, a plurality of the equal roll connection of edge and the equal roll connection of a plurality of universal wheel in the inside of circular spacing groove of solid fixed ring bottom is fixed to arcs such as universal wheel.

Preferably, two first slow speed motor is fixed respectively at the both ends at first backup pad top, two drive gear fixed cover is respectively established at the tip of two first slow speed motor output shafts, outer gear ring fixed cover is established at the surface on a rotating cylinder top and two drive gears all are connected with outer gear ring meshing.

Preferably, rabbling mechanism still includes stirring leaf, scraper blade and hob, the both ends of second backup pad respectively with the top fixed connection of the relative one side of two fixed plates, the second is motor at a slow speed and is fixed at the middle part on second backup pad top, the rotatory second backup pad that runs through in rotation axis top and with the tip fixed connection of second motor output shaft at a slow speed, the hob is fixed in the bottom of rotation axis, (mixing) shaft, stirring leaf and scraper blade all have a plurality of, a plurality of the equidistant surface of fixing at the rotation axis of (mixing) shaft of arcs such as (mixing) shaft, a plurality of the equidistant surface of fixing at the (mixing) shaft of arcs such as stirring leaf, a plurality of the scraper blade is fixed respectively in the one end of a plurality of (mixing) shaft.

Preferably, the middle part on the bottom plate top is fixed to the fixed block, the third backup pad is located the inside of fixed block, pressure sensor has two, two pressure sensor fixes respectively at the both ends of fixed block inner chamber bottom and two pressure sensor's top respectively with the both ends fixed connection of third backup pad bottom, the top at the third backup pad is placed in the transfer box activity.

Preferably, the two connecting rods are respectively hinged with two ends of the top of the movable joint hinge through two movable joint hinges, the two v-shaped frames 21274are respectively fixed at the top ends of the opposite sides of the two connecting rods, and two ends of one side of the v-shaped inserting rod are respectively movably inserted in the middle of the front sides of the two connecting rods.

Preferably, one of them the fixed PLC controller that is equipped with in one side of fixed plate, the fixed water injection pipe that has pegged graft in top of second backup pad, PLC controller and external power supply electric connection, two the solenoid valve of first row of material pipe, the solenoid valve of a second row of material pipe, two first slow motors, a second slow motor all with the output electric connection of PLC controller, two electromagnetic flowmeter and two pressure sensor all with the input electric connection of PLC controller.

Compared with the prior art, the utility model has the beneficial effects that:

1. the two first slow motors are arranged, the output shafts of the two first slow motors drive the two driving gears to rotate in the same direction, the two driving gears drive the outer gear ring to rotate, so that the rotating cylinder can be driven to rotate, meanwhile, the output shaft of the second slow motor drives the rotating shaft to rotate in the reverse direction opposite to the rotating cylinder, and meanwhile, the rotating shaft drives the stirring shafts and the stirring blades to rotate, so that under the combined action of the rotation of the rotating cylinder, the stirring shafts and the stirring blades, cement and dried sand in the rotating cylinder can be quickly and fully mixed and stirred;

2. through being equipped with \21274, the shape inserted bar through with \21274, the both ends of shape inserted bar one side activity grafting respectively can carry on spacingly at the middle part of two connecting rod front sides, through connecting rod and \21274, the cooperation each other of shape frame can block spacingly to the transport box for the transport box can only vertically move down when weighing, when pouring into mixed stirring thing into transport box inside, can in time monitor the weight of the mixed stirring thing of the inside of transport box through two pressure sensor, thereby reach the mesh of carrying out the accurate weighing to mixed stirring thing.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is an enlarged view of A of FIG. 2 according to the present invention.

In the figure: 1. a base plate; 2. a top plate; 3. a fixing plate; 401. a material storage tank; 402. an electromagnetic flow meter; 403. a first discharging pipe; 404. a material injection pipe; 501. a first support plate; 502. a rotating cylinder; 503. a fixing ring; 504. a universal wheel; 505. a second discharge pipe; 601. a first slow motor; 602. a drive gear; 603. an outer gear ring; 701. a second support plate; 702. a second slow speed motor; 703. a rotating shaft; 704. a stirring shaft; 705. stirring blades; 706. a squeegee; 707. a screw rod; 801. a fixed block; 802. a third support plate; 803. a pressure sensor; 804. a transfer box; 901. a living hinge; 902. a connecting rod; 903. \ 21274and a shape frame; 904. \ 21274;' shape inserted bar; 10. a PLC controller; 11. a water injection pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a compound mixer for heat preservation intergral template production line, including a bottom plate 1, a roof 2 and two fixed plates 3, roof 2 is located the top of bottom plate 1, the bottom of two fixed plates 3 respectively with the both ends fixed connection at bottom plate 1 top, the top of two fixed plates 3 respectively with the both ends fixed connection of roof 2 bottom, the both ends at roof 2 top all are provided with storage mechanism, storage mechanism includes storage tank 401, electromagnetic flowmeter 402, from first discharge pipe 403 and the notes material pipe 404 of taking the solenoid valve, the bottom of roof 2 is provided with the mixing system, the mixing system includes interim storage mechanism, slewing mechanism and rabbling mechanism, interim storage mechanism includes first backup pad 501, rotary drum 502 and solid fixed ring 503, slewing mechanism includes two first slow motor 601, two drive gears 602 and an outer gear ring 603, the rabbling mechanism includes second backup pad 701, 701, The device comprises a second slow-speed motor 702, a rotating shaft 703 and a stirring shaft 704, wherein a weighing system is arranged in the middle of the top end of a bottom plate 1, the weighing system comprises a weighing mechanism and a limiting mechanism, the weighing mechanism comprises a fixed block 801, a third supporting plate 802, a pressure sensor 803 and a transfer box 804, and the limiting mechanism comprises two articulated hinges 901, two connecting rods 902, two v-21274, a shape frame 903, one v-21274and a shape inserting rod 904.

As an embodiment of the present invention, a storage tank 401 is fixed at one end of the top of a top plate 2, a material injection pipe 404 is fixedly inserted at the top end of the storage tank 401, the top end of a first material discharge pipe 403 penetrates through a second support plate 701 and is fixedly inserted at the bottom end of the storage tank 401, an electromagnetic flowmeter 402 is sleeved at the middle of the first material discharge pipe 403, cement or dried sand can be stored in the storage tank 401 through the storage tank 401, cement or dried sand can be added into the storage tank 401 through the material injection pipe 404, the cement or dried sand in the storage tank 401 can be discharged through the first material discharge pipe 403, and the flow rate of the cement or dried sand flowing in the first material discharge pipe 403 can be monitored through the electromagnetic flowmeter 402.

As an implementation mode of the utility model, the temporary storage mechanism further comprises universal wheels 504 and a second discharge pipe 505 with an electromagnetic valve, two ends of the first support plate 501 are respectively and fixedly connected with the middle part of one side of the two fixed plates 3, the bottom end of the rotary cylinder 502 penetrates through the first support plate 501, the second discharge pipe 505 is fixedly inserted at the bottom end of the rotary cylinder 502, a circular limit groove is arranged at the edge of the top end of the first support plate 501, the fixed ring 503 is fixedly sleeved on the outer surface of the middle part of the rotary cylinder 502, the universal wheels 504 are provided with a plurality of universal wheels 504, the like arcs are fixed at the edge of the bottom end of the fixed ring 503, and the universal wheels 504 are all in rolling connection with the inside of the circular limit groove, through the mutual matching of the universal wheel 504, the fixing ring 503 and the first supporting plate 501, not only the rotating cylinder 502 can be supported, meanwhile, the rotary cylinder 502 is convenient to rotate, and mixed stirring materials obtained after mixing and stirring cement and dried sand can be discharged through the second discharge pipe 505.

As an embodiment of the present invention, two first slow motors 601 are respectively fixed at two ends of the top of the first support plate 501, two driving gears 602 are respectively and fixedly sleeved at end portions of output shafts of the two first slow motors 601, an outer gear ring 603 is fixedly sleeved on an outer surface of the top end of the rotary cylinder 502, and both the two driving gears 602 are engaged with the outer gear ring 603, the two driving gears 602 are driven by the output shafts of the two first slow motors 601 to rotate in the same direction, and the two driving gears 602 drive the outer gear ring 603 to rotate, so that the rotary cylinder 502 can be driven to rotate.

As an embodiment of the present invention, the stirring mechanism further includes a stirring blade 705, a scraping plate 706 and a spiral rod 707, two ends of the second supporting plate 701 are respectively fixedly connected to the top ends of the opposite sides of the two fixing plates 3, the second slow motor 702 is fixed in the middle of the top end of the second supporting plate 701, the top end of the rotating shaft 703 rotatably penetrates through the second supporting plate 701 and is fixedly connected to the end of the output shaft of the second slow motor 702, the spiral rod 707 is fixed to the bottom end of the rotating shaft 703, the stirring shafts 704, the stirring blades 705 and the scraping plate 706 are provided with a plurality of numbers, the stirring shafts 704 are fixed to the outer surface of the rotating shaft 703 at equal intervals, the stirring blades 705 are fixed to the outer surface of the stirring shaft 704 at equal intervals, the scraping plates 706 are respectively fixed to one ends of the stirring shafts 704, the second slow motor 702 can be supported by the second supporting plate 701, the rotating shaft 703 is driven by the output shaft of the second slow motor 702 to rotate in the opposite direction to the rotating cylinder 502, meanwhile, the rotating shaft 703 drives the stirring shafts 704 and the stirring blades 705 to rotate, so that cement and dried sand in the rotating cylinder 502 can be mixed and stirred, mixed stirring materials attached to the inner wall of the rotating cylinder 502 can be scraped off in the rotating process through the scraper 706, and the mixed stirring materials at the bottom of the inner cavity of the rotating cylinder 502 can be stirred in a rolling manner through the screw rod 707.

As an embodiment of the utility model, a fixed block 801 is fixed in the middle of the top end of a bottom plate 1, a third supporting plate 802 is positioned inside the fixed block 801, two pressure sensors 803 are provided, the two pressure sensors 803 are respectively fixed at two ends of the bottom of an inner cavity of the fixed block 801, the top ends of the two pressure sensors 803 are respectively fixedly connected with two ends of the bottom of the third supporting plate 802, a transfer box 804 is movably placed at the top end of the third supporting plate 802, the third supporting plate 802 can start the supporting function of the transfer box 804, and the weight of mixed stirrers inside the transfer box 804 can be conveniently monitored through the provided pressure sensors 803.

As an implementation mode of the utility model, two connecting rods 902 are respectively hinged with two ends of the top of the movable joint hinge 901 through two movable joint hinges 901, two v-shaped frames 21274are respectively fixed at the top ends of the opposite sides of the two connecting rods 902, v-shaped frames 21274are respectively fixed at the middle parts of the front sides of the two connecting rods 902, two ends of one side of a v-shaped inserting rod 904 are respectively movably inserted in the middle parts of the front sides of the two connecting rods 902, the two connecting rods 902 can be limited through the movably inserted two ends of one side of the v-shaped inserting rod 904 in the middle parts of the front sides of the two connecting rods 902, and the transfer box 804 can be blocked and limited through the mutual matching of the connecting rods 902 and the v-shaped frames 903, so that the transfer box 804 is prevented from being turned over.

As an embodiment of the present invention, a PLC controller 10 is fixedly disposed on one side of one fixing plate 3, a water injection pipe 11 is fixedly inserted into a top end of the second supporting plate 701, the PLC controller 10 is electrically connected to an external power source, two electromagnetic valves of the first discharging pipe 403 and one electromagnetic valve of the second discharging pipe 505 are electrically connected to an output end of the PLC controller 10, two first slow motors 601 and one second slow motor 702 are electrically connected to an input end of the PLC controller 10, two electromagnetic flowmeters 402 and two pressure sensors 803 are electrically connected to an input end of the PLC controller 10, and water can be injected into the rotating cylinder 502 through the water injection pipe 11.

The working principle is as follows: firstly, a PLC (programmable logic controller) 10 is started, the PLC 10 is preferably of a CTSC-100 type, two flow values and two same pressure values are set on the PLC 10, then the PLC 10 controls electromagnetic valves of two first discharging pipes 403 to be opened, cement and drying sand in two storage tanks 401 flow into a rotating cylinder 502 at the moment, simultaneously two electromagnetic flowmeters 402 monitor the flow of the cement and the drying sand flowing through the two first discharging pipes 403 and feed data back to the PLC 10, when the two flow values received by the PLC 10 reach the set values, the PLC 10 controls the electromagnetic valves of the two first discharging pipes to be closed, and simultaneously controls two first slow motors 601 and a second slow motor 702 to work simultaneously, the two first slow motors 601 and the second slow motor 702 are preferably of a KTYZ type, output shafts of the two first slow motors 601 drive two driving gears 602 to rotate in the same direction, two driving gears 602 drive an external gear ring 603 to rotate, so that the rotating cylinder 502 can be driven to rotate, meanwhile, an output shaft of a second slow speed motor 702 drives a rotating shaft 703 to rotate along the reverse rotation direction opposite to that of the rotating cylinder 502, meanwhile, the rotating shaft 703 drives a plurality of stirring shafts 704 and a plurality of stirring blades 705 to rotate, so that under the combined action of the rotation of the rotating cylinder 502, the stirring shafts 704 and the stirring blades 705, cement and dried sand in the rotating cylinder 502 can be rapidly and fully mixed and stirred, water is injected into the rotating cylinder 502 through a water injection pipe 11, then, the transfer box 804 is placed on a third supporting plate 802, the two connecting rods 902 are stirred to be close to each other, simultaneously, two ends of one side of the V-shaped inserting rod 904 are movably inserted in the middle parts of the front sides of the two connecting rods 902 to limit the two connecting rods 902, the connecting rods 74212903 and 902 are matched with each other to block and limit the transfer box 804, so that the transfer box 804 can only move vertically downwards during weighing, after stirring is finished, the two first slow motors 601 and the second slow motor 702 are closed and the electromagnetic valve of the second discharging pipe 505 is opened through the PLC controller 10, the stirring mixture in the rotating cylinder 502 flows into the transfer box 804 through the second discharging pipe 505, when the mixed stirrer is injected into the transfer box 804, the two pressure sensors 803 can monitor the weight of the mixed stirrer in the transfer box 804 in real time, the two pressure sensors 803 are preferably HDYL-400A-T type, and feed data back to the PLC controller 10, when the feedback value received by the PLC controller 10 reaches a set value, the PLC controller 10 controls the electromagnetic valve of the second discharging pipe 505 to be closed, so that the purpose of accurately weighing the mixed stirrer can be achieved, and finally, the 74212poker rod 904 is pulled out from the middle part of the front sides of the two connecting rods 902, the two connecting rods 902 are released from the limit, and then the transfer box 804 is taken down.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a mixer for compound incubation intergral template production line, includes a bottom plate (1), a roof (2) and two fixed plate (3), a serial communication port, roof (2) are located the top of bottom plate (1), two the bottom of fixed plate (3) respectively with the both ends fixed connection at bottom plate (1) top, two the top of fixed plate (3) respectively with the both ends fixed connection of roof (2) bottom, the both ends at roof (2) top all are provided with storage mechanism, storage mechanism includes storage tank (401), electromagnetic flowmeter (402), first row's of taking the solenoid valve material pipe (403) and annotates material pipe (404), the bottom of roof (2) is provided with mixing system, mixing system includes interim storage mechanism, slewing mechanism and rabbling mechanism, interim storage mechanism includes first backup pad (501) The rotary drum type stirring device comprises a rotary drum (502) and a fixing ring (503), wherein the rotary mechanism comprises two first slow speed motors (601), two driving gears (602) and an outer gear ring (603), the stirring mechanism comprises a second supporting plate (701), a second slow speed motor (702), a rotating shaft (703) and a stirring shaft (704), a weighing system is arranged in the middle of the top end of the bottom plate (1), the weighing system comprises a weighing mechanism and a limiting mechanism, the weighing mechanism comprises a fixed block (801), a third supporting plate (802), a pressure sensor (803) and a transfer box (804), and the limiting mechanism comprises two movable joint hinges (901), two connecting rods (902), two 21274, a shape frame (903) and one v 21274and a shape inserting rod (904).

2. The stirring machine for the composite heat-insulation integrated plate production line according to claim 1, characterized in that: the material storage tank (401) is fixed at one end of the top plate (2), the material injection pipe (404) is fixedly inserted at the top end of the material storage tank (401), the top end of the first material discharge pipe (403) penetrates through the second supporting plate (701) and is fixedly inserted at the bottom end of the material storage tank (401), and the electromagnetic flow meter (402) is sleeved at the middle part of the first material discharge pipe (403).

3. The stirring machine for the composite heat-insulation integrated plate production line according to claim 1, characterized in that: temporary storage mechanism still includes universal wheel (504) and arranges material pipe (505) from taking the solenoid valve second, the both ends of first backup pad (501) respectively with the middle part fixed connection of two fixed plate (3) relative one side, first backup pad (501) is run through to the bottom of rotating a section of thick bamboo (502), the second is arranged material pipe (505) and is fixed pegged graft in the bottom of rotating a section of thick bamboo (502), circular spacing groove has been seted up to the edge on first backup pad (501) top, solid fixed ring (503) fixed cover is established at the surface of rotating a section of thick bamboo (502) middle part, universal wheel (504) have a plurality of, a plurality of the equal arc of universal wheel (504) is fixed in the inside of the equal roll connection of edge and a plurality of universal wheel (504) in solid fixed ring (503) bottom at circular spacing groove.

4. The stirring machine for the production line of the composite heat-insulation integrated plate as claimed in claim 3, wherein: two first slow speed motor (601) are fixed respectively at the both ends at first backup pad (501) top, two drive gear (602) are fixed the tip of establishing at two first slow speed motor (601) output shafts respectively, the fixed cover of external gear ring (603) is established and is all connected with external gear ring (603) meshing at the surface on a rotation section of thick bamboo (502) top and two drive gear (602).

5. The stirring machine for the composite heat-insulation integrated plate production line according to claim 1, characterized in that: the stirring mechanism also comprises a stirring blade (705), a scraping plate (706) and a screw rod (707), two ends of the second supporting plate (701) are respectively fixedly connected with the top ends of the opposite sides of the two fixing plates (3), the second slow motor (702) is fixed in the middle of the top end of the second support plate (701), the top end of the rotating shaft (703) rotatably penetrates through the second support plate (701) and is fixedly connected with the end part of the output shaft of the second slow motor (702), the spiral rod (707) is fixed at the bottom end of a rotating shaft (703), the stirring shaft (704), the stirring blades (705) and the scraping plates (706) are all provided with a plurality of stirring shafts (704), the stirring shafts (704) are fixed on the outer surface of the rotating shaft (703) at equal arcs and equal intervals, the stirring blades (705) are fixed on the outer surface of the stirring shaft (704) at equal arcs and equal intervals, and the scraping plates (706) are respectively fixed at one ends of the stirring shafts (704).

6. The stirring machine for the composite heat-insulation integrated plate production line according to claim 1, characterized in that: the middle part on bottom plate (1) top is fixed in fixed block (801), third backup pad (802) are located the inside of fixed block (801), pressure sensor (803) have two, two pressure sensor (803) are fixed respectively at the both ends of fixed block (801) inner chamber bottom and the top of two pressure sensor (803) respectively with the both ends fixed connection of third backup pad (802) bottom, transport case (804) activity is placed on the top of third backup pad (802).

7. The stirring machine for the composite heat-insulation integrated plate production line according to claim 1, characterized in that: the two connecting rods (902) are respectively hinged with two ends of the top of the movable joint hinge (901) through the two movable joint hinges (901), the two v-shaped frames (903) are respectively fixed at the top ends of the opposite sides of the two connecting rods (902), and the two ends of one side of the v-shaped frame (903) are respectively movably inserted in the middle of the front sides of the two connecting rods (902).

8. The stirring machine for the composite heat-insulation integrated plate production line according to claim 1, characterized in that: one side of one of the fixing plates (3) is fixedly provided with a PLC (programmable logic controller) controller (10), and the top end of the second supporting plate (701) is fixedly inserted with a water injection pipe (11).

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