CN112195032A - Inside fire-resistant mud conveying system of coke oven big-arch shelter - Google Patents
Inside fire-resistant mud conveying system of coke oven big-arch shelter Download PDFInfo
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- CN112195032A CN112195032A CN202011055702.1A CN202011055702A CN112195032A CN 112195032 A CN112195032 A CN 112195032A CN 202011055702 A CN202011055702 A CN 202011055702A CN 112195032 A CN112195032 A CN 112195032A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B29/00—Other details of coke ovens
- C10B29/02—Brickwork, e.g. casings, linings, walls
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Abstract
The invention provides a refractory slurry conveying system in a coke oven greenhouse, which comprises a slurry stirring system, a slurry storage system, a blowing system, a conveying pipeline and a branch pipe lifting device. The slurry stirring system comprises a stirring tank, a feeding ball valve and a feeding pipe; the slurry storage system comprises a storage tank, a discharging ball valve, a discharging pipe and a mixer; the blowing system comprises an air compressor, a compressed air input pipeline, an air storage tank and a compressed air output pipeline; the conveying pipeline comprises a fire-resistant slurry injection main pipe, a hose, a fire-resistant slurry injection branch pipe and a working position injection branch pipe. After stirring, delivering the refractory slurry to a storage tank through a delivery pipe; stirring while waiting for the materials in a storage tank, and after the storage tank is full; opening a blanking ball valve, and enabling slurry to flow into a mixer; simultaneously, the air compressor is started, the air output valve is started after the air pressure of the air storage tank is stabilized, and compressed air is sent into the mixer; the refractory slurry is blown to the blowing main pipe through compressed air, and is conveyed to a station through the blowing branch pipe of the work station.
Description
Technical Field
The invention belongs to the technical field of refractory mortar conveying in a coke oven greenhouse, and particularly relates to a refractory mortar conveying system in the coke oven greenhouse.
Background
The refractory material masonry in the coke oven engineering is the most core process, and because the refractory material cannot be exposed to water in the construction process, the coke oven greenhouse in the form of a steel structure is generally used for protecting the whole coke oven in the greenhouse in the coke oven engineering construction. At present, one coke oven is provided with 60-70-hole carbonization chambers, construction is carried out on 15-20 small groups during construction, and each group needs a specially-assigned person to transport refractory slurry during refractory material construction, so that the working continuity of the whole group is ensured, therefore, a large amount of manpower is needed to transport the refractory slurry during the construction process of one coke oven, the working intensity is high, and the working efficiency is low.
In view of this, at present, a system capable of meeting the conveying efficiency of the refractory slurry in the coke oven greenhouse needs to be invented, so that the defects of the conventional construction process are avoided, the working efficiency can be enhanced, and the engineering cost is further reduced.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a refractory mortar conveying system in a coke oven greenhouse.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a refractory slurry conveying system in a coke oven greenhouse comprises a slurry stirring system, a slurry storage system, a blowing system, a conveying pipeline and a branch pipe lifting device;
the slurry stirring system comprises a stirring tank, a stirring tank motor, a feeding ball valve and a feeding pipe; the middle lower part of the side surface of the stirring tank is connected with the slurry stirring storage tank through a feeding pipe, and a feeding ball valve is connected to the feeding pipe to control the opening and closing of the feeding pipe;
the slurry storage system comprises a slurry stirring storage tank, a storage tank motor, a discharging ball valve, a discharging pipe and a mixer; the lower part of the slurry stirring storage tank is connected with a discharging pipe, a discharging ball valve is connected to the discharging pipe to control the opening and closing of the discharging pipe, and the other end of the discharging pipe is communicated with a mixer;
the blowing system comprises an air compressor, a compressed air input pipeline, an air storage tank, an air output valve and a compressed air output pipeline; the air compressor is communicated with a compressed air input pipeline, the compressed air input pipeline is communicated with an air storage tank, the air storage tank is communicated with a compressed air output pipeline, an air output valve is connected to the compressed air output pipeline, and the tail end of the compressed air output pipeline is connected with the mixer; the mixer is a chamber.
The conveying pipeline comprises a fire-resistant slurry injection main pipe, a hose, a fire-resistant slurry injection branch pipe and a working position injection branch pipe; the middle part of the fire-resistant mud injection main pipe is connected with a hose, the output end of the fire-resistant mud injection main pipe is connected with the fire-resistant mud injection branch pipe through a tee joint, and the fire-resistant mud injection branch pipe is connected with the plurality of working position injection branch pipes through tee joints.
The refractory mortar conveying system in the coke oven greenhouse,
the main injection pipe is fixed on the upright post of the coke oven shed, the refractory slurry injection branch pipes are temporarily fixed on the upright post of the coke oven shed and the inter-post supports, the refractory slurry injection branch pipes ascend along with the ascending of the building height, and the refractory slurry injection branch pipes ascend and descend by adopting a branch pipe lifting device fixed on the top surface of the coke oven shed to realize electric lifting.
According to the fire-resistant slurry conveying system in the coke oven greenhouse, the branch pipe lifting device is an overlong electric hanger rod, the overlong electric hanger rod mainly comprises a lifting motor, a transmission screw rod, a sleeve nut, a connecting rod and a hook head, the lifting motor is fixed above a use position, one end of the transmission screw rod is connected to an output shaft of the lifting motor, the other end of the transmission screw rod is in threaded connection with the sleeve nut, a connection end part of the transmission screw rod and the sleeve nut is connected with a backstop ring, the sleeve nut is welded on the connecting rod and is divided into a forward-rotation sleeve nut and a reverse-rotation sleeve nut which respectively correspond to the forward-rotation transmission screw rod and the reverse; when in installation, the sleeve nut matched with the transmission screw is welded on the connecting rod, and then the transmission screw is screwed into the sleeve nut.
The refractory slurry conveying system in the coke oven greenhouse further comprises a check ring, crescent holes are formed in two sides of the transmission screw, and the check ring with the diameter larger than that of the transmission screw is welded on the transmission screw from the crescent holes of the connecting rod.
The refractory slurry conveying system in the coke oven greenhouse further comprises a heightening support, and the stirring tank is connected to the heightening support.
According to the fire-resistant slurry conveying system in the coke oven greenhouse, the two gas storage tanks are arranged in parallel, the pressure in the two gas storage tanks is kept consistent and stable, and only one gas storage tank is used at a time to ensure that the pressure in a slurry conveying pipeline is stable and continuous.
According to the refractory mortar conveying system in the coke oven greenhouse, the length of the hose is 1.0-1.2 times of the maximum lifting height of the refractory mortar injection branch pipe.
The refractory slurry conveying system in the coke oven greenhouse further comprises a main injection pipe bracket, wherein the main injection pipe bracket is connected to the coke oven greenhouse upright post, and the refractory slurry injection main pipe is connected to the coke oven greenhouse upright post through the main injection pipe bracket.
The refractory slurry conveying system in the coke oven greenhouse further comprises a working position injection ball valve, and the working position injection ball valve is connected to the working position injection branch pipe.
A method for conveying refractory mortar in a coke oven greenhouse,
1. 3-4 sets of refractory slurry conveying systems are respectively arranged on two sides in each coke oven greenhouse, and each set of refractory slurry conveying system conveys refractory slurry on the coke oven working surface within 20 holes; and selecting a proper air compressor.
2. Placing the stirring tank on a heightening support, and conveying the stirred refractory slurry into the stirring storage tank in a self-flowing mode;
3. 1 working position injection branch pipe is shared by every 2 holes of the coke oven, and the working position injection branch pipes are arranged above the centers of the 2 holes;
4. the refractory slurry injection main pipes are arranged along the upright columns of the coke oven shed, the upright columns are connected with injection main pipe brackets to fix the refractory slurry injection main pipes, the injection branch pipes at the working positions are positioned above the carbonization chambers and share one pipe when 2 holes are constructed, and the lifting of the refractory slurry injection branch pipes is controlled by an overlong electric suspender fixed on a roof truss of the coke oven shed;
adding refractory powder by a travelling crane in the coke oven greenhouse, supplying water by a water supply pipe in the coke oven greenhouse, opening a feeding ball valve after stirring of the stirring tank is finished, and conveying refractory slurry to a slurry stirring storage tank through a feeding pipe; the refractory slurry is stirred and is subjected to material waiting in the slurry stirring and storing tank, and the slurry in the slurry stirring and storing tank is stored fully; opening a blanking ball valve, and enabling the refractory slurry to flow into a mixer; simultaneously, the air compressor is started, the air output valve is started after the air pressure of the air storage tank is stabilized, and compressed air is sent into the mixer; the refractory mortar is sprayed to the refractory mortar spraying main pipe in the mixer through compressed air, and workers at a work station convey the refractory mortar to the work station through the work station spraying branch pipe connected with the refractory mortar spraying branch pipe.
Foretell inside fire-resistant mud conveying system of coke oven big-arch shelter, agitator tank and storage jar all include the stirring leaf, and the agitator tank stirring leaf is up, and storage jar stirring leaf is down.
The refractory slurry conveying system in the coke oven greenhouse further comprises a stirring tank platform and a slurry stirring storage tank support, wherein the stirring tank is connected to the stirring tank platform, a stirring tank motor is connected to a beam at the lower part of the stirring tank platform, and the slurry stirring storage tank is connected to the slurry stirring storage tank support.
The invention has the beneficial effects that:
1. the device mainly comprises a slurry stirring system, a slurry storage system, a blowing system, a conveying pipeline and a branch pipe lifting device, refractory materials and water are stirred by a stirring tank and then are collected into a slurry stirring storage tank, the refractory slurry is stirred and is ready in the slurry stirring storage tank, after the slurry in the slurry stirring storage tank is fully stored, the refractory slurry flows into a mixer through a discharging ball valve below a tank body, and the refractory slurry is blown into the conveying pipeline through compressed air in the mixer.
2. The refractory mortar conveying systems are arranged on two sides in the coke oven greenhouse, 3-4 sets of refractory mortar conveying systems are arranged on each side, and each set of refractory mortar conveying system is responsible for supplying refractory mortar required by building a coke oven carbonization chamber within 20 holes.
3. The super-long electric suspender drives the transmission screw rod to rotate through the lifting motor, so that the transmission screw rod and the connecting rod rotate to extend or shorten, and the suspended refractory slurry injection branch pipe is quickly lifted to a proper position.
4. The main pipe for injecting the refractory slurry is provided with a hose connection, the lower main pipe is fixed, the upper main pipe is lifted along with the hose and the branch pipe for injecting the refractory slurry, and the height of the branch pipe for injecting the refractory slurry to a proper working position is adjusted.
Drawings
FIG. 1 is a schematic front view of a refractory slurry delivery system according to the present invention;
FIG. 2 is a schematic front view of a refractory mortar delivery system according to the present invention;
FIG. 3 is a schematic cross-sectional view of a refractory slurry delivery system according to the present invention;
FIG. 4 is a schematic view of an ultra-long electric boom of the present invention;
fig. 5 is a schematic view of an ultra-long electric boom connection rod.
Figure 1-air compressor; 2-a gas storage tank; 3-a stirred tank platform; 4-a stirring tank; 5-a feed ball valve; 6-a feeding pipe; 7-a storage tank; 8-a blanking ball valve; 9-a mixer; 10-a storage tank support; 11-compressed air input line; 12-compressed air output line; 13-blowing main pipe; 14-a hose; 15-refractory slurry injection branch pipe; 16-a working position blowing branch pipe; 17-an electric boom; 18-a coke oven greenhouse; 19-refractory slurry delivery system; 20-a coke oven body; 21-a lifting motor; 22-a drive screw; 23-a collet nut; 24-anti-back ring; 25-a connecting rod; 26-hook head; 27-forward rotation of the collet nut; 28-hollow cylinder; 29-reverse-screwing sleeve nuts, 30-refractory brick walls and 31-coke oven foundations.
Detailed Description
Example 1
A refractory slurry conveying system in a coke oven greenhouse comprises a slurry stirring system, a slurry storage system, a blowing system, a conveying pipeline and a branch pipe lifting device;
the slurry stirring system comprises a stirring tank 4, a stirring tank motor, a feeding ball valve 5 and a feeding pipe 6; the middle lower part of the side surface of the stirring tank 4 is connected with a slurry stirring storage tank 7 through a feeding pipe 6, and a feeding ball valve 5 is connected on the feeding pipe 6 to control the opening and closing of the feeding pipe 6;
the slurry storage system comprises a slurry stirring storage tank 7, a storage tank motor, a discharging ball valve 8, a discharging pipe and a mixer 9; the lower part of the slurry stirring storage tank 7 is connected with a discharging pipe, a discharging ball valve 8 is connected on the discharging pipe to control the opening and closing of the discharging pipe, and the other end of the discharging pipe is communicated with a mixer 9;
the blowing system comprises an air compressor 1, a compressed air input pipeline 11, an air storage tank 2, an air output valve and a compressed air output pipeline 12; the air compressor 1 is communicated with a compressed air input pipeline 11, the compressed air input pipeline 11 is communicated with an air storage tank 2, the air storage tank 2 is communicated with a compressed air output pipeline 12, the compressed air output pipeline 12 is connected with an air output valve, and the tail end of the compressed air output pipeline 12 is connected with the mixer 9; the mixer 9 is a chamber.
The conveying pipeline comprises a main refractory slurry injection pipe 13, a hose 14, a branch refractory slurry injection pipe 15 and a branch working position injection pipe 16; the middle part of the fire-resistant mud injection main pipe 13 is connected with a hose 14, the output end of the fire-resistant mud injection main pipe 13 is connected with a fire-resistant mud injection branch pipe 15 through a tee joint, and the fire-resistant mud injection branch pipe 15 is connected with a plurality of working position injection branch pipes 16 through tee joints.
Example 2
Based on embodiment 1, this embodiment further defines the branch pipe elevating device:
in the fire-resistant slurry conveying system in the coke oven greenhouse, the branch pipe lifting device is an overlong electric hanger rod 17, the overlong electric hanger rod 17 mainly comprises a lifting motor 21, a transmission screw 22, a sleeve nut 23, a connecting rod 25 and a hook head 26, the lifting motor 21 is fixed above a use position, one end of the transmission screw 22 is connected to an output shaft of the lifting motor 21, the other end of the transmission screw 22 is in threaded connection with the sleeve nut 23, the connecting end of the transmission screw 22 and the sleeve nut 23 is connected with a stop ring 24, the sleeve nut 23 is welded on the connecting rod 25 and is divided into a forward-rotation sleeve nut 27 and a reverse-rotation sleeve nut 29 which respectively correspond to the forward-rotation transmission screw and the reverse-rotation transmission screw, and the connecting rod; when the device is installed, the sleeve nut 23 matched with the transmission screw 22 is welded on the connecting rod 25, and then the transmission screw 22 is screwed into the sleeve nut 23.
Preferably, the refractory mortar conveying system in the coke oven shed further comprises a check ring 24, wherein crescent holes are formed in two sides of the transmission screw 22, and the check ring 24 with the diameter larger than that of the transmission screw 22 is welded on the transmission screw 22 from the crescent holes of the connecting rod 25.
Example 3
Based on the above embodiments, embodiment 3 lists several preferable technical features, and embodiment 1 or embodiment 2 can be combined with them alternatively or in combination to form a plurality of new and different technical solutions.
Preferably, in the refractory mortar conveying system in the coke oven shed, the injection main pipe 13 is fixed on an upright post of the coke oven shed 18, the refractory mortar injection branch pipes 15 are temporarily fixed on the upright post of the coke oven shed 18 and a support between the upright posts, the refractory mortar injection branch pipes 15 ascend along with the ascending of the building height, and the ascending and descending of the refractory mortar injection branch pipes 15 are realized by adopting a branch pipe lifting device fixed on the top surface of the coke oven shed 18.
Preferably, the refractory mortar conveying system in the coke oven greenhouse further comprises a heightening support, and the stirring tank 4 is connected to the heightening support.
Preferably, in the refractory slurry conveying system in the coke oven greenhouse, two gas storage tanks 2 are arranged in parallel, so that the pressure in the two gas storage tanks 2 is kept consistent and stable, and only one gas storage tank 2 is used at a time to ensure the stable and continuous pressure in the slurry conveying pipeline.
According to the refractory mortar conveying system in the coke oven greenhouse, the length of the hose 14 is 1.0-1.2 times of the maximum lifting height of the refractory mortar injection branch pipe 15.
Preferably, the refractory mortar conveying system in the coke oven shed further comprises a main injection pipe bracket, the main injection pipe bracket is connected to the upright post of the coke oven shed 18, and the refractory mortar injection main pipe 13 is connected to the upright post of the coke oven shed 18 through the main injection pipe bracket.
Preferably, the refractory mortar conveying system in the coke oven greenhouse further comprises a work position injection ball valve, and the work position injection ball valve is connected to the work position injection branch pipe 16.
Preferably, in the refractory mortar conveying system in the coke oven greenhouse, the stirring tank 4 and the storage tank 7 both include stirring blades, the stirring blades of the stirring tank face upwards, and the stirring blades of the storage tank face downwards.
Preferably, the refractory slurry conveying system in the coke oven greenhouse further comprises a stirring tank platform 3 and a slurry stirring storage tank support 10, wherein the stirring tank 4 is connected to the stirring tank platform 3, a stirring tank motor is connected to a beam at the lower part of the stirring tank platform 3, and a slurry stirring storage tank 7 is connected to the slurry stirring storage tank support 10.
Example 4
A method for conveying refractory mortar in a coke oven greenhouse,
1. 3-4 sets of refractory mortar conveying systems are respectively arranged on two sides in each coke oven greenhouse 18, and each set of refractory mortar conveying system conveys refractory mortar on the coke oven working surface within 20 holes;
2. placing the stirring tank 4 on a heightening support, and conveying the stirred refractory slurry into a stirring storage tank 7 in a self-flowing mode;
3. 1 working position injection branch pipe 16 is shared by every 2 holes of the coke oven, and the working position injection branch pipes 16 are arranged above the centers of the 2 holes;
4. the refractory slurry injection main pipe 13 is arranged along the upright post of the coke oven shed, the upright post is connected with an injection main pipe bracket to fix the refractory slurry injection main pipe 13, the working position injection branch pipes 16 are positioned above the carbonization chamber and share one pipe when 2 holes are constructed, and the lifting of the refractory slurry injection branch pipes 15 is controlled by an overlong electric suspender 17 fixed on the roof truss of the coke oven shed;
adding refractory powder by a traveling crane in a coke oven greenhouse 18, supplying water by a water supply pipe in the coke oven greenhouse, opening a feeding ball valve 5 after stirring of a stirring tank 4 is finished, and conveying refractory slurry to a slurry stirring storage tank 7 through a feeding pipe 6; the refractory slurry is stirred and is ready in the slurry stirring storage tank 7, and after the slurry in the slurry stirring storage tank 7 is fully stored; opening the blanking ball valve 8, and enabling the refractory slurry to flow into the mixer 9; simultaneously, the air compressor 1 is started, the air output valve is started after the air pressure of the air storage tank 2 is stabilized, and compressed air is sent into the mixer 9; the refractory mortar is blown to a refractory mortar blowing main pipe 13 in the mixer 9 through compressed air, and a worker delivers the refractory mortar to a working position through a working position blowing branch pipe 16 connected with a refractory mortar blowing branch pipe 15. Compressed air is supplied by the air compressor 1, and the air storage tank 7 is used for pressure stabilization. Compressed air is the motive force for blowing.
Example 5
The invention is further described below with reference to the accompanying drawings:
the invention relates to a refractory slurry conveying system in a coke oven greenhouse, which mainly comprises a slurry stirring system, a slurry storage system, a blowing system, a conveying pipeline and a branch pipe lifting device as shown in figures 1 to 5, wherein the slurry stirring system comprises a stirring tank 4, a stirring tank platform 3, a stirring tank motor, a feeding ball valve 5 and a feeding pipe 6. The slurry storage system comprises a slurry stirring storage tank 7, a slurry stirring storage tank support 10, a blanking ball valve 8 and a mixer 9. The blowing system comprises an air compressor 1, an air storage tank 2, a compressed air input pipeline 11 and a compressed air output pipeline 12. The conveying pipeline comprises a main refractory slurry injection pipe 13, a hose 14, a branch refractory slurry injection pipe 15 and a branch working position injection pipe 16. The branch pipe lifting device is an ultra-long electric suspender 17.
The overlength electric suspender 17 mainly comprises a lifting motor 21, a transmission screw 22, a sleeve nut 23, a check ring 24, a connecting rod 25 and a hook head 26, wherein the lifting motor 21 is fixed above a use position, one end of the transmission screw 22 is connected to an output shaft of the lifting motor, the other end of the transmission screw 22 is in threaded connection with the sleeve nut 23, the connecting end part of the transmission screw 22 and the sleeve nut is connected with the check ring 24, the sleeve nut 23 is welded on the connecting rod 25 and is divided into a forward rotation sleeve nut 27 and a reverse rotation sleeve nut 29 which respectively correspond to the forward rotation transmission screw and the reverse rotation transmission screw, the connecting rod 25 is made of a pipeline, and long crescent holes are formed in two; when the anti-backlash device is installed, the sleeve nut 23 matched with the transmission screw 22 is welded on the connecting rod 25, the transmission screw 22 is screwed into the sleeve nut 23, and the anti-backlash ring 24 with the diameter larger than that of the transmission screw 22 is welded on the transmission screw 22 from the crescent hole of the connecting rod 25. The drive screw 22 and the connecting rod 25 may be provided in plural sets depending on the length of use.
The refractory material and the water are stirred into slurry in proportion, the slurry flows into a storage tank 7 through a feeding pipe 6 and a feeding ball valve 5 after being stirred in a stirring tank 4, stirring blades are connected in the storage tank 7 for slow stirring, and the slurry is slowly stirred in the storage tank 7 to prevent the refractory slurry from depositing; the jetting system jets compressed air into the mixer, and refractory slurry is conveyed to each operation point through the conveying pipeline, so that the defects of the conventional construction process are avoided, the working efficiency is improved, and the engineering cost is further reduced.
When the stirring device is used, the stirring tank 4 is connected to the stirring tank platform 3, the stirring tank motor is connected to a beam at the lower part of the stirring tank platform 4, refractory powder is added by a travelling crane in the coke oven greenhouse, water is supplied by a water supply pipe in the coke oven greenhouse, the feeding ball valve 5 is opened after stirring is finished, and refractory slurry is conveyed to the slurry stirring storage tank 7 through the feeding pipe 6. The refractory slurry is stirred and is ready in the slurry stirring storage tank 7, and after the slurry in the slurry stirring storage tank 7 is fully stored; opening the blanking ball valve 8, and enabling the refractory slurry to flow into the mixer 9; meanwhile, the air compressor 1 is started, the air output valve is started after the air pressure of the air storage tank 2 is stabilized, and compressed air is sent into the mixer 9. The refractory mortar is blown to a refractory mortar blowing main pipe 13 in the mixer 9 through compressed air, and a worker delivers the refractory mortar to a working position through a working position blowing branch pipe 16 connected with a refractory mortar blowing branch pipe 15.
The refractory mortar conveying system 19 is arranged on two sides in the coke oven greenhouse, and 3-4 sets of refractory mortar conveying systems are arranged on each side, so that the pressure of a refractory mortar conveying pipeline is ensured, and no dead angle is left in refractory mortar conveying. When the refractory bricks are built to the same height as the refractory mortar injection branch pipes 15, the refractory mortar injection branch pipes 15 are lifted to a proper height by the super-long electric hanger rods 17. A plurality of work station injection branch pipes 16 are arranged in each coke oven shed 18 to convey the refractory mortar to a work surface. The defects of low efficiency, high cost and large loss of the manual refractory slurry conveying are overcome. Each system is provided with a control console, and the air compressor 1, an air output valve, a stirring tank motor, a storage tank motor, a feeding ball valve 5, a discharging ball valve 8, a working position blowing ball valve and an electric suspender 17 are integrally controlled through a PLC control system. The control method is changed into a common method, and only one of the prior art is used. The air compressor 1, the air output valve, the stirring tank motor, the storage tank motor, the feeding ball valve 5, the discharging ball valve 8 and the work position injection ball valve can be realized by one of the prior art.
The blowing system is provided with an air compressor 1 and two air storage tanks 2, the air storage tanks 2 are connected in parallel, pressure in the two air storage tanks 2 is kept consistent and stable, pressure in a slurry conveying pipeline is guaranteed to be stable and continuous by using only one air storage tank 2 at a time, and a compressed air output pipeline 12 above the air storage tanks 2 is connected to a mixer 9. The refractory slurry conveying pipeline is arranged above the operation surface of each hole of the coke oven, the plurality of working position injection branch pipes 16 are opened through a tee joint, the working position injection branch pipes 16 are connected with the working position injection ball valve to convey refractory slurry to the operation surface, each working position injection branch pipe 16 is connected in parallel and then converges into the refractory slurry injection branch pipe 15, the refractory slurry injection main pipe 13 is communicated, and the refractory slurry injection main pipe 13 is finally communicated with the storage tank 7 through the mixer 9, so that the recycling of the residual refractory slurry is realized.
Claims (10)
1. A refractory slurry conveying system in a coke oven greenhouse is characterized by comprising a slurry stirring system, a slurry storage system, a blowing system, a conveying pipeline and a branch pipe lifting device;
the slurry stirring system comprises a stirring tank, a stirring tank motor, a feeding ball valve and a feeding pipe; the middle lower part of the side surface of the stirring tank is connected with the slurry stirring storage tank through a feeding pipe, and a feeding ball valve is connected to the feeding pipe to control the opening and closing of the feeding pipe;
the slurry storage system comprises a slurry stirring storage tank, a storage tank motor, a discharging ball valve, a discharging pipe and a mixer; the lower part of the slurry stirring storage tank is connected with a discharging pipe, a discharging ball valve is connected to the discharging pipe to control the opening and closing of the discharging pipe, and the other end of the discharging pipe is communicated with a mixer;
the blowing system comprises an air compressor, a compressed air input pipeline, an air storage tank, an air output valve and a compressed air output pipeline; the air compressor is communicated with a compressed air input pipeline, the compressed air input pipeline is communicated with an air storage tank, the air storage tank is communicated with a compressed air output pipeline, an air output valve is connected to the compressed air output pipeline, and the tail end of the compressed air output pipeline is connected with the mixer;
the conveying pipeline comprises a fire-resistant slurry injection main pipe, a hose, a fire-resistant slurry injection branch pipe and a working position injection branch pipe; the middle part of the fire-resistant mud injection main pipe is connected with a hose, the output end of the fire-resistant mud injection main pipe is connected with the fire-resistant mud injection branch pipe through a tee joint, and the fire-resistant mud injection branch pipe is connected with the plurality of working position injection branch pipes through tee joints.
2. The fire-resistant mud conveying system in the coke oven shed as claimed in claim 1, wherein the main injection pipe is fixed on the coke oven shed column, the fire-resistant mud injection branch pipe is temporarily fixed on the coke oven shed column and the inter-column support, the fire-resistant mud injection branch pipe rises along with the rise of the masonry height, and the fire-resistant mud injection branch pipe is lifted electrically by a branch pipe lifting device fixed on the top surface of the coke oven shed.
3. The fire-resistant slurry conveying system in the coke oven greenhouse according to claim 1, wherein the branch pipe lifting device is an ultra-long electric boom, the ultra-long electric boom mainly comprises a lifting motor, a transmission screw, a sleeve nut, a connecting rod and a hook head, the lifting motor is fixed above a use position, one end of the transmission screw is connected to an output shaft of the lifting motor, the other end of the transmission screw is in threaded connection with the sleeve nut, a connecting end of the transmission screw and the sleeve nut is connected with a backstop ring, the sleeve nut is welded on the connecting rod and is divided into a forward-rotation sleeve nut and a reverse-rotation sleeve nut which respectively correspond to the forward-rotation transmission screw and the reverse-rotation transmission screw, and the connecting rod is a hollow; when in installation, the sleeve nut matched with the transmission screw is welded on the connecting rod, and then the transmission screw is screwed into the sleeve nut.
4. The fire-resistant mud conveying system in the coke oven greenhouse as claimed in claim 3, further comprising a check ring, wherein crescent holes are formed on two sides of the transmission screw, and the check ring with the diameter larger than that of the transmission screw is welded on the transmission screw from the crescent holes of the connecting rod.
5. The refractory mortar delivery system of claim 1, further comprising a heightening bracket, wherein the agitator tank is connected to the heightening bracket.
6. The fire-resistant mud conveying system in the coke oven greenhouse as claimed in claim 1, wherein two air tanks are arranged in parallel, the pressure in the two air tanks is kept consistent and stable, and only one air tank is used at a time to ensure the stable and continuous pressure in the mud conveying pipeline.
7. The fire-resistant mud conveying system in the coke oven greenhouse as claimed in claim 1, wherein the length of the hose is 1.0-1.2 times of the maximum lifting height of the fire-resistant mud injection branch pipe.
8. The fire-resistant mud conveying system in the coke oven shed as claimed in claim 1, further comprising a main injection pipe bracket, wherein the main injection pipe bracket is connected to the coke oven shed column, and the fire-resistant mud injection main pipe is connected to the coke oven shed column through the main injection pipe bracket.
9. The fire-resistant mud delivery system inside the coke oven tunnel according to claim 1, further comprising a work site injection ball valve, wherein the work site injection ball valve is connected to the work site injection branch pipe.
10. A method for conveying refractory mortar in a coke oven greenhouse, which is characterized in that,
1. 3-4 sets of refractory slurry conveying systems are respectively arranged on two sides in each coke oven greenhouse, and each set of refractory slurry conveying system conveys refractory slurry on the coke oven working surface within 20 holes;
2. placing the stirring tank on a heightening support, and conveying the stirred refractory slurry into the stirring storage tank in a self-flowing mode;
3. 1 working position injection branch pipe is shared by every 2 holes of the coke oven, and the working position injection branch pipes are arranged above the centers of the 2 holes;
4. the refractory slurry injection main pipes are arranged along the upright columns of the coke oven shed, the upright columns are connected with injection main pipe brackets to fix the refractory slurry injection main pipes, the injection branch pipes at the working positions are positioned above the carbonization chambers and share one pipe when 2 holes are constructed, and the lifting of the refractory slurry injection branch pipes is controlled by an overlong electric suspender fixed on a roof truss of the coke oven shed;
adding refractory powder by a travelling crane in the coke oven greenhouse, supplying water by a water supply pipe in the coke oven greenhouse, opening a feeding ball valve after stirring of the stirring tank is finished, and conveying refractory slurry to a slurry stirring storage tank through a feeding pipe; the refractory slurry is stirred and is subjected to material waiting in the slurry stirring and storing tank, and the slurry in the slurry stirring and storing tank is stored fully; opening a blanking ball valve, and enabling the refractory slurry to flow into a mixer; simultaneously, the air compressor is started, the air output valve is started after the air pressure of the air storage tank is stabilized, and compressed air is sent into the mixer; the refractory mortar is sprayed to the refractory mortar spraying main pipe in the mixer through compressed air, and workers at a work station convey the refractory mortar to the work station through the work station spraying branch pipe connected with the refractory mortar spraying branch pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011055702.1A CN112195032A (en) | 2020-09-30 | 2020-09-30 | Inside fire-resistant mud conveying system of coke oven big-arch shelter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011055702.1A CN112195032A (en) | 2020-09-30 | 2020-09-30 | Inside fire-resistant mud conveying system of coke oven big-arch shelter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112195032A true CN112195032A (en) | 2021-01-08 |
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| US4364798A (en) * | 1980-12-30 | 1982-12-21 | Bmi, Inc. | Rebuilt coke oven heating chamber and method of making the same |
| CN101956462A (en) * | 2010-09-07 | 2011-01-26 | 王恒 | Walling machine |
| CN103387835A (en) * | 2013-08-05 | 2013-11-13 | 中国二十二冶集团有限公司 | Coke oven heat-state pumping grouting construction method |
| CN103627409A (en) * | 2013-11-29 | 2014-03-12 | 中冶天工集团有限公司 | Grouting device capable of outputting balance pressure |
| CN103642505A (en) * | 2013-11-29 | 2014-03-19 | 中冶天工集团有限公司 | Grouting construction method of coke oven hot roof mud |
| CN104789233A (en) * | 2015-04-03 | 2015-07-22 | 中国五冶集团有限公司 | Furnace top mud conveying system for coke oven hot construction and implementation method of furnace top mud conveying system |
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