CN112958021A - Trenchless repair lining polyurea spraying material preparation device and preparation process of modified polyurea coating - Google Patents
Trenchless repair lining polyurea spraying material preparation device and preparation process of modified polyurea coating Download PDFInfo
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0002—Casings; Housings; Frame constructions
- B01D46/0012—In-line filters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
- B01J19/0066—Stirrers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/093—Cleaning containers, e.g. tanks by the force of jets or sprays
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/08—Polyurethanes from polyethers
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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Abstract
The invention discloses a preparation device of a trenchless repairing lining polyurea spraying material and a preparation process of a modified polyurea coating, and particularly relates to the technical field of preparation of the spraying material. The invention is provided with the exhaust fan, the exhaust cylinder, the primary activated carbon net, the secondary activated carbon net, the clamping block and the clamping groove, when the air purifier is used, the exhaust fan is started, the exhaust fan can extract air in the lower tank body and the upper tank body and then exhaust the air into the exhaust cylinder, and the primary activated carbon net and the secondary activated carbon net in the exhaust cylinder can carry out twice filtration, adsorption and purification on the exhausted air, so that pollutants in the exhausted air are removed, and the environment is protected.
Description
Technical Field
The invention relates to the technical field of spray material preparation, in particular to a preparation device of a trenchless repairing lining polyurea spray material and a preparation process of modified polyurea coating.
Background
The trenchless pipeline lining repairing technology is a technology for repairing a damaged drainage pipeline in a surface trenchless mode, polyurea spraying materials are main raw materials of the trenchless pipeline lining repairing technology, a trenchless repairing lining polyurea spraying material preparation device is needed in the production and processing process of the polyurea spraying materials, and the existing trenchless repairing lining polyurea spraying material preparation device has many problems and defects.
In the process of implementing the invention, the inventor finds that at least the following problems in the prior art are not solved:
(1) in the stirring and mixing process of the raw materials of the traditional trenchless repairing lining polyurea spraying material preparation device, the raw materials are easily unevenly distributed due to the action of centrifugal force, and the using requirement cannot be met;
(2) the traditional trenchless repairing lining polyurea spraying material preparation device is inconvenient to transfer and transport and inconvenient to use;
(3) the traditional trenchless repairing lining polyurea spraying material preparation device can not uniformly supply water and is difficult to clean the interior;
(4) toxic gas generated in the production process of the traditional trenchless repairing lining polyurea spraying material preparation device is diffused into the air to easily generate environmental pollution;
(5) traditional non-excavation is restoreed inside lining polyurea spraying material preparation facilities and is adopted the integral type structure, and it is comparatively difficult to maintain.
Disclosure of Invention
The invention aims to provide a preparation device of a lining polyurea spraying material for trenchless repair, which aims to solve the problems that in the stirring and mixing process of raw materials in the background technology, the raw materials are easily unevenly distributed due to the action of centrifugal force, and the use requirement cannot be met.
In order to achieve the purpose, the invention provides the following technical scheme: a preparation device for a non-excavation repairing lining polyurea spraying material comprises a bottom plate and a support frame, wherein the support frame is fixedly connected to the top end of the bottom plate, a structure convenient to move is arranged at four corners of the bottom end of the bottom plate, a lower tank body is fixedly connected to the top end of the support frame, an upper tank body is arranged at the top end of the lower tank body, a discharge hole is fixedly connected to the middle position of the bottom end of the lower tank body, a water supply cleaning mechanism is arranged on one side of the top end of the upper tank body, a liquid raw material inlet is fixedly connected to the top end of one side of the upper tank body, a solid raw material inlet is arranged on the other side of the top end of the upper tank body, a structure convenient to maintain is arranged between the top end of the lower tank body and the;
the homogeneous mixing mechanism includes variable speed motor, variable speed motor fixed connection is in the one side on last jar body top, the one side swing joint on the internal portion top of last jar has first pivot, variable speed motor's output and the top fixed connection of first pivot, the opposite side swing joint on the internal portion top of last jar has the second pivot, the outside difference fixedly connected with blade of first pivot and second pivot, the outside first gear of top fixedly connected with of first pivot, the outside top fixedly connected with second gear of second pivot.
Preferably, the blades outside the first rotating shaft and the blades outside the second rotating shaft are distributed in a staggered mode.
Preferably, the first gear and the second gear are equal in size, and the first gear and the second gear are in meshing connection.
Preferably, the structure of being convenient for to remove comprises supporting shoe, first screw hole, stay bolt, inside groove, spacing spout, spacing slider and the wheel of moving away to avoid possible earthquakes, the supporting shoe is fixed connection four corners in the bottom plate bottom respectively, the inside of supporting shoe bottom is provided with the inside groove, the inside both sides of inside groove are provided with spacing spout, the top of inside groove is provided with first screw hole, the stay bolt has been run through to the inside of first screw hole, the bottom swing joint of stay bolt has the wheel of moving away to avoid possible earthquakes, the both sides of the wheel of moving away to avoid possible earthquakes are fixed connection with spacing.
Preferably, the limiting sliding block is inserted into the limiting sliding groove, and the limiting sliding groove is connected with the limiting sliding block in a sliding mode.
Preferably, the water supply cleaning mechanism comprises a water storage tank, a water suction pump, a ring pipe and a water spray nozzle, the water storage tank is fixedly connected to one side of the top end of the upper tank body, the water suction pump is arranged at the front end of the water storage tank, the ring pipe is fixedly connected to the top end of the inner portion of the upper tank body, and the two ends of the bottom of the ring pipe are respectively and fixedly connected with the water spray nozzle.
Preferably, exhaust purification mechanism comprises exhaust fan, exhaust cylinder, primary activated carbon net, secondary activated carbon net, fixture block and draw-in groove, exhaust fan fixed connection is on the top of last jar body one side, the exhaust cylinder sets up the one side at the exhaust fan, the inside one side of exhaust cylinder is provided with primary activated carbon net, the inside opposite side of exhaust cylinder is provided with secondary activated carbon net, one side difference fixedly connected with fixture block at primary activated carbon net and secondary activated carbon net both ends, draw-in groove difference fixed connection is in the both sides at the inside both ends of exhaust cylinder.
Preferably, the clamping block is embedded in the clamping groove, and a clamping structure is formed between the clamping block and the clamping groove.
Preferably, be convenient for maintain the structure by fin board, second screw hole, locking bolt, hexagon nut and rubber seal constitute, the fin board is fixed connection respectively on the top of the external portion of jar down and go up the bottom of the external portion of jar, the inside of fin board is provided with the second screw hole, the inside of second screw hole is run through there is locking bolt, the outside one end swing joint of locking bolt has hexagon nut, go up the fin board bottom fixedly connected with rubber seal of the external bottom of jar.
Preferably, the second threaded holes are annularly and equidistantly arranged in the fin plate.
The invention also comprises a preparation process of the modified polyurea coating, wherein high-activity polyether polyol 330N, hydrazine hydrate and an N-alkyl-N, N-dimethyl-N-carboxymethyl ammonium chloride dispersing agent are added into the tank body, the tank body is sealed after the air in the tank body is replaced by nitrogen through an exhaust purification mechanism (14), a uniform mixing mechanism is started to stir a premixed base material for 8-16 min, and hexamethylene diisocyanate is gradually dripped into a polyether polyol/hydrazine hydrate system under the condition of intense stirring; continuously stirring and reacting for 0.5-1 h, then adding benzoyl chloride, continuously reacting for 0.3-0.6 h, then vacuumizing the interior of the tank body for 2.5-3.5 h through an exhaust purification mechanism (14), and removing micromolecular water and residual monomers to obtain a component A prepolymer required by the polyurea coating; wherein the high-activity polyether polyol accounts for 33-38 wt% of the total weight of the component A, the hydrazine hydrate accounts for 1-4 wt%, the N-alkyl-N, N-dimethyl-N-carboxymethyl ammonium chloride accounts for 3-6 wt%, and the hexamethylene diisocyanate accounts for 58-66 wt%; benzoyl chloride is 0.3-0.6% wt; after the reaction is finished, the prepolymer of the component A is led out from a discharging mechanism (9) for standby;
the inside of the tank body is cleaned by a water supply cleaning mechanism (12), under the protection of a nitrogen environment, acetone which is twice of the total weight of the component B is added into the tank body, 0.3-0.6% wt of N-alkyl-N, N-dimethyl-N-carboxymethyl ammonium chloride is added, 1-3% wt KH550 coupling agent and 26-36% wt of inorganic salt whisker are added, under the condition of continuous stirring, pigment is added, and after being uniformly mixed, the mixture is added into the tank body, wherein the molar ratio of the mixture to hexamethylene diisocyanate is 1: 1, heating the mixture of diethyl toluenediamine and 2- (4-aminophenyl) -5(6) aminophenyl benzimidazole under the condition that the stirring speed of a mixing and stirring mechanism is controlled to be 200-300 rpm, raising the temperature to 48-66 ℃, refluxing for 18-36 min, vacuumizing for 2.5-3.5 h under the conditions of-0.088-0.096 MPa and 88-96 ℃, and removing acetone to obtain a chain extender B component required by the polyurea coating; wherein the molar ratio of the diethyltoluenediamine to the 2- (4-aminophenyl) -5(6) aminophenylbenzimidazole is 0.88-0.99: 0.12 to 0.01; and finally, mixing the prepolymer of the component A and the component B of the chain extender, and spraying for 16-28 s.
Compared with the prior art, the invention has the beneficial effects that: the preparation device for the trenchless repair lining polyurea spraying material not only realizes that the raw material components are prevented from being unevenly distributed due to the action of centrifugal force in the stirring and mixing process of the raw materials, can meet the use requirement, realizes convenient transfer and transportation of the raw materials, is convenient to use, realizes uniform water supply, is simple to clean the interior, realizes purification treatment of toxic gas generated in the production process, avoids environmental pollution, realizes a split structure, and is convenient to maintain;
(1) by arranging the uniform mixing mechanism, the uniform mixing mechanism comprises a variable speed motor, the variable speed motor is fixedly connected with one side of the top end of the upper tank body, one side of the top end of the inner part of the upper tank body is movably connected with a first rotating shaft, the output end of the variable speed motor is fixedly connected with the top end of the first rotating shaft, the other side of the top end of the inner part of the upper tank body is movably connected with a second rotating shaft, blades are respectively and fixedly connected with the outer parts of the first rotating shaft and the second rotating shaft, the top end of the outer part of the first rotating shaft is fixedly connected with a first gear, the top end of the outer part of the second rotating shaft is fixedly connected with a second gear, when in use, the variable speed motor is started, the variable speed motor drives the first rotating shaft to rotate, the first rotating shaft drives the second rotating shaft to oppositely rotate through the first gear and the second gear, the blades, thereby the components of the raw materials can be uniformly distributed and the use requirement can be met;
(2) by arranging the supporting block, the first threaded hole, the long bolt, the inner groove, the limiting sliding block and the shock absorbing wheel, when the shock absorbing wheel is used, the long bolt is rotated, the shock absorbing wheel is gradually ejected out of the inner groove by the long bolt, and in the process, the limiting sliding block slides in the limiting sliding groove to play a limiting role, so that the shock absorbing wheel can support the device, the device can be conveniently moved, the shock absorbing wheel is retracted into the inner groove after the movement is completed, the supporting block is recovered to support the device, the stability is high, and the use is very convenient;
(3) by arranging the water storage tank, the water suction pump, the annular pipe and the water spray nozzle, when the water supply device is used, the water suction pump is started, the water in the water storage tank is pumped out by the water suction pump and then sent into the annular pipe, and finally the water in the annular pipe is uniformly sprayed out of the lower tank body and the upper tank body through the water spray nozzle, so that not only can uniform water supply be realized, but also the inside of the lower tank body and the upper tank body can be sprayed and cleaned after the water supply device is used, and two purposes are achieved;
(4) when the air purifier is used, the exhaust fan is started, the exhaust fan can extract air in the lower tank body and the upper tank body and then exhaust the air into the exhaust barrel, and the primary activated carbon net and the secondary activated carbon net in the exhaust barrel can perform filtering, adsorption and purification on the exhausted air twice, so that pollutants in the exhausted air are removed, and the environment is protected;
(5) through being provided with finned plate, second screw hole, locking bolt, hexagon nut and rubber seal, when using, the finned plate that will descend jar body and last jar body one end passes through locking bolt indentation fixed, and rubber seal can strengthen the leakproofness of seam crossing simultaneously, and jar body and last jar body adopt split type structure down like this, when needs maintain the device inner assembly, only need to twist out locking bolt and can unpack down jar body and last jar body apart to the convenience is maintained the device.
Drawings
FIG. 1 is a schematic front sectional view of the present invention;
FIG. 2 is a schematic bottom view of the upper tank of the present invention;
FIG. 3 is an enlarged partial cross-sectional view taken at A in FIG. 1 according to the present invention;
FIG. 4 is an enlarged front view, partially sectioned, schematic view of the exhaust purification mechanism of the present invention;
FIG. 5 is an enlarged front view, partially in section, of the structure for facilitating movement in accordance with the present invention;
FIG. 6 is a schematic bottom view of the annular tube of the present invention.
In the figure: 1. a base plate; 2. a support frame; 3. a discharge port; 4. the structure is convenient to move; 401. a support block; 402. a first threaded hole; 403. a long bolt; 404. an inner tank; 405. a limiting chute; 406. a limiting slide block; 407. a shock-absorbing wheel; 5. a tank body is arranged; 6. a first rotating shaft; 7. feeding the tank body; 8. a liquid feedstock inlet; 9. a first gear; 10. a solid feedstock inlet; 11. a variable speed motor; 12. a water supply cleaning mechanism; 1201. a water storage tank; 1202. a water pump; 1203. an annular tube; 1204. a water spray nozzle; 13. a second gear; 14. an exhaust gas purification mechanism; 1401. an exhaust fan; 1402. an exhaust duct; 1403. a primary activated carbon mesh; 1404. a secondary activated carbon web; 1405. a clamping block; 1406. a card slot; 15. a second rotating shaft; 16. a blade; 17. the structure is convenient to maintain; 1701. a fin plate; 1702. a second threaded hole; 1703. locking the bolt; 1704. a hexagonal nut; 1705. a rubber seal ring.
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.
Example 1: referring to fig. 1-6, a device for preparing a lining polyurea spraying material for trenchless repair comprises a bottom plate 1 and a support frame 2, wherein the support frame 2 is fixedly connected to the top end of the bottom plate 1, four corners of the bottom end of the bottom plate 1 are provided with a structure 4 convenient to move, the top end of the support frame 2 is fixedly connected with a lower tank body 5, the top end of the lower tank body 5 is provided with an upper tank body 7, the middle position of the bottom end of the lower tank body 5 is fixedly connected with a discharge port 3, one side of the top end of the upper tank body 7 is provided with a water supply cleaning mechanism 12, the top end of one side of the upper tank body 7 is fixedly connected with a liquid raw material inlet 8, the other side of the top end of the upper tank body 7 is provided with a solid raw material inlet 10, a structure 17 convenient to maintain is arranged between the top end;
referring to fig. 1-6, the trenchless repairing lining polyurea spraying material preparation device further comprises a uniform mixing mechanism, the uniform mixing mechanism comprises a variable speed motor 11, the variable speed motor 11 is fixedly connected to one side of the top end of the upper tank body 7, the type of the variable speed motor 11 can be TCL010, one side of the top end inside the upper tank body 7 is movably connected with a first rotating shaft 6, the output end of the variable speed motor 11 is fixedly connected with the top end of the first rotating shaft 6, the other side of the top end inside the upper tank body 7 is movably connected with a second rotating shaft 15, blades 16 are respectively and fixedly connected to the outer portions of the first rotating shaft 6 and the second rotating shaft 15, a first gear 9 is fixedly connected to the outer top end of the first rotating shaft 6, and a second gear 13 is fixedly connected to the outer top end;
the blades 16 outside the first rotating shaft 6 and the blades 16 outside the second rotating shaft 15 are distributed in a staggered mode;
the first gear 9 and the second gear 13 are equal in size, and the first gear 9 and the second gear 13 are in meshing connection;
specifically, as shown in fig. 1, when in use, the variable speed motor 11 is started, the variable speed motor 11 drives the first rotating shaft 6 to rotate, the first rotating shaft 6 drives the second rotating shaft 15 to rotate oppositely through the first gear 9 and the second gear 13, and the blades 16 outside the first rotating shaft 6 and the second rotating shaft 15 can stir and mix the raw materials bidirectionally, so that the raw materials can be prevented from generating centrifugal force in the mixing process, the components of the raw materials can be uniformly distributed, and the use requirement can be met.
Example 2: the convenient moving structure 4 comprises supporting blocks 401, first threaded holes 402, long bolts 403, an inner groove 404, limiting sliding grooves 405, limiting sliding blocks 406 and a shock absorbing wheel 407, the supporting blocks 401 are respectively and fixedly connected to four corners of the bottom end of the base plate 1, the inner groove 404 is arranged inside the bottom end of the supporting blocks 401, the limiting sliding grooves 405 are arranged on two sides inside the inner groove 404, the first threaded holes 402 are arranged at the top end of the inner groove 404, the long bolts 403 penetrate through the inside of the first threaded holes 402, the shock absorbing wheel 407 is movably connected to the bottom end of the long bolts 403, and the limiting sliding blocks 406 are respectively and fixedly connected to two sides of the shock;
the limiting slide block 406 is inserted into the limiting slide groove 405, and the limiting slide groove 405 is connected with the limiting slide block 406 in a sliding manner;
specifically, as shown in fig. 1 and 5, when in use, the long bolt 403 is rotated, the long bolt 403 gradually ejects the shock absorbing wheel 407 from the inner groove 404, in this process, the limit slider 406 slides in the limit sliding groove 405 to play a limiting role, so that the shock absorbing wheel 407 supports the device, the device can be conveniently moved, after the movement is completed, the shock absorbing wheel 407 retreats into the inner groove 404, the support of the support block 401 to the device is recovered, the stability is high, and the use is very convenient.
Example 3: the water supply cleaning mechanism 12 comprises a water storage tank 1201, a water suction pump 1202, a ring pipe 1203 and a water spray head 1204, wherein the water storage tank 1201 is fixedly connected to one side of the top end of the upper tank body 7, the water suction pump 1202 is arranged at the front end of the water storage tank 1201, the type of the water suction pump 1202 can be ISW, the ring pipe 1203 is fixedly connected to the top end of the interior of the upper tank body 7, and the water spray head 1204 is fixedly connected to two ends of the bottom of the ring pipe 1203 respectively;
specifically, as shown in fig. 1 and 6, when the device is used, the water pump 1202 is started, the water pump 1202 pumps the water inside the water storage tank 1201, the water is sent into the annular pipe 1203, and finally the water inside the annular pipe 1203 is uniformly sprayed out of the inner parts of the lower tank body 5 and the upper tank body 7 through the water spraying nozzles 1204, so that not only uniform water supply can be realized, but also the inner parts of the lower tank body 5 and the upper tank body 7 can be sprayed and cleaned after the device is used, and the two purposes are achieved.
Example 4: the exhaust purification mechanism 14 comprises an exhaust fan 1401, an exhaust cylinder 1402, a primary activated carbon net 1403, a secondary activated carbon net 1404, a fixture block 1405 and a clamping groove 1406, wherein the exhaust fan 1401 is fixedly connected to the top end of one side of the upper tank 7, the type of the exhaust fan 1401 can be 1380, the exhaust cylinder 1402 is arranged on one side of the exhaust fan 1401, the primary activated carbon net 1403 is arranged on one side inside the exhaust cylinder 1402, the secondary activated carbon net 1404 is arranged on the other side inside the exhaust cylinder 1402, the fixture block 1405 is fixedly connected to one side of two ends of the primary activated carbon net 1403 and one side of two ends of the secondary activated carbon net 1404 are respectively, and the clamping groove 1406 is fixedly connected to two sides of two ends inside the exhaust cylinder 1402 respectively;
the clamping block 1405 is embedded in the clamping groove 1406, and a clamping structure is formed between the clamping block 1405 and the clamping groove 1406;
specifically, as shown in fig. 1 and 4, when the air purifier is used, the exhaust fan 1401 is started, the exhaust fan 1401 can extract air inside the lower tank 5 and the upper tank 7, and then the air is discharged into the exhaust cylinder 1402, and the primary activated carbon net 1403 and the secondary activated carbon net 1404 inside the exhaust cylinder 1402 can perform two times of filtering, adsorbing and purifying on the discharged air, so as to remove pollutants in the discharged air and protect the environment.
Example 5: the structure 17 convenient for maintenance is composed of a fin plate 1701, a second threaded hole 1702, a locking bolt 1703, a hexagon nut 1704 and a rubber seal ring 1705, the fin plate 1701 is fixedly connected to the top end of the outer portion of the lower tank body 5 and the bottom end of the outer portion of the upper tank body 7 respectively, the second threaded hole 1702 is arranged in the fin plate 1701, the locking bolt 1703 penetrates through the inner portion of the second threaded hole 1702, the hexagon nut 1704 is movably connected to one end of the outer portion of the locking bolt 1703, and the rubber seal ring 1705 is fixedly connected to the bottom end of the fin plate 1701 at the bottom end of the outer portion of the upper tank;
the second screw holes 1702 are arranged in the fin 1701 at equal intervals in a ring shape;
specifically, as shown in fig. 1, 2 and 3, when the device is used, the fin 1701 at one end of the lower tank body 5 and the fin 1701 at one end of the upper tank body 7 are retracted and fixed through the locking bolt 1703, meanwhile, the rubber sealing ring 1705 can enhance the sealing performance of the joint, so that the lower tank body 5 and the upper tank body 7 adopt a split structure, when the internal components of the device need to be maintained, the lower tank body 5 and the upper tank body 7 can be disassembled only by screwing out the locking bolt 1703, and therefore the device is convenient to maintain.
The working principle is as follows: when the invention is used, firstly, the variable-speed motor 11 is started, the variable-speed motor 11 drives the first rotating shaft 6 to rotate, the first rotating shaft 6 drives the second rotating shaft 15 to rotate oppositely through the first gear 9 and the second gear 13, and the blades 16 outside the first rotating shaft 6 and the second rotating shaft 15 can stir and mix raw materials in a bidirectional way, so that the raw materials can be prevented from generating centrifugal force in the mixing process, the components of the raw materials can be uniformly distributed, and the use requirement can be met.
Then, when the device is used, the water suction pump 1202 is started, the water inside the water storage tank 1201 is pumped out by the water suction pump 1202 and then sent into the annular pipe 1203, finally, the water inside the annular pipe 1203 is uniformly sprayed out of the lower tank body 5 and the upper tank body 7 through the water spray nozzles 1204, so that not only can uniform water supply be realized, but also the inside of the lower tank body 5 and the inside of the upper tank body 7 can be sprayed and cleaned after the device is used, and two purposes are achieved.
Secondly, when using, start exhaust fan 1401, exhaust fan 1401 can take out the inside air of lower jar of body 5 and upper jar of body 7, then discharge into the inside of exhaust cylinder 1402, and first order activated carbon net 1403 and secondary activated carbon net 1404 in the inside of exhaust cylinder 1402 can carry out twice filtration adsorption purification to the air of getting rid of to get rid of the pollutant in the exhaust air, the environmental protection.
Then, when using, with the wing 1701 of lower jar of body 5 and upper jar of body 7 one end fixed through locking bolt 1703 indentation, rubber seal 1705 can strengthen the leakproofness of seam crossing simultaneously, like this lower jar of body 5 and upper jar of body 7 adopt split type structure, when needing to the maintenance of device internal component, only need to twist out locking bolt 1703 and can unpack lower jar of body 5 and upper jar of body 7 apart to the convenience is maintained the device.
Finally, when the device is used, the long bolt 403 is rotated, the long bolt 403 gradually ejects the shock absorbing wheel 407 out of the inner groove 404, in the process, the limiting slide block 406 slides in the limiting slide groove 405 to play a limiting role, so that the shock absorbing wheel 407 supports the device, the device can be conveniently moved, after the movement is completed, the shock absorbing wheel 407 retreats into the inner groove 404, the support of the support block 401 to the device is recovered, the stability is high, and the device is very convenient to use.
The invention also comprises a preparation process of the modified polyurea coating, wherein high-activity polyether polyol 330N, hydrazine hydrate and an N-alkyl-N, N-dimethyl-N-carboxymethyl ammonium chloride dispersing agent are added into the tank body, the tank body is sealed after the air in the tank body is replaced by nitrogen through the exhaust purification mechanism 14, the uniform mixing mechanism is started to stir the premixed bottom material for 8-16 min, and hexamethylene diisocyanate is gradually dripped into a polyether polyol/hydrazine hydrate system under the condition of intense stirring; continuously stirring and reacting for 0.5-1 h, then adding benzoyl chloride, continuously reacting for 0.3-0.6 h, then vacuumizing the interior of the tank body for 2.5-3.5 h through an exhaust purification mechanism 14, and removing micromolecular water and residual monomers to obtain a component A prepolymer required by the polyurea coating; wherein the high-activity polyether polyol accounts for 33-38 wt% of the total weight of the component A, the hydrazine hydrate accounts for 1-4 wt%, the N-alkyl-N, N-dimethyl-N-carboxymethyl ammonium chloride accounts for 3-6 wt%, and the hexamethylene diisocyanate accounts for 58-66 wt%; benzoyl chloride is 0.3-0.6% wt; after the reaction is finished, the prepolymer of the component A is led out from a discharging mechanism 9 for standby;
utilizing a water supply cleaning mechanism 12 to clean the interior of a tank body, adding acetone which is twice of the total weight of the component B into the tank body under the protection of a nitrogen environment, adding 0.3-0.6% wt of N-alkyl-N, N-dimethyl-N-carboxymethyl ammonium chloride, adding 1-3% wt KH550 coupling agent and 26-36% wt of inorganic salt whisker, adding pigment under the condition of continuous stirring, and adding the mixture and hexamethylene diisocyanate in a molar ratio of 1 after uniformly mixing: 1, heating the mixture of diethyl toluenediamine and 2- (4-aminophenyl) -5(6) aminophenyl benzimidazole under the condition that the stirring speed of a mixing and stirring mechanism is controlled to be 200-300 rpm, raising the temperature to 48-66 ℃, refluxing for 18-36 min, vacuumizing for 2.5-3.5 h under the conditions of-0.088-0.096 MPa and 88-96 ℃, and removing acetone to obtain a chain extender B component required by the polyurea coating; wherein the molar ratio of the diethyltoluenediamine to the 2- (4-aminophenyl) -5(6) aminophenylbenzimidazole is 0.88-0.99: 0.12 to 0.01; and finally, mixing the prepolymer of the component A and the component B of the chain extender, and spraying for 16-28 s.
The physical properties of the modified polyurea of the invention are characterized by high adhesive force, high tensile strength, high wear resistance and the like.
The polyurea has excellent corrosion resistance, ultraviolet resistance and catalytic aging resistance due to the chemical property.
The construction advantages of polyurea are insensitivity to water, high construction speed, low-temp. solidification and good stability after solidification.
The polyurea has the advantages of physical property, chemical property and construction, and is particularly suitable for water conservancy waterproof engineering.
TABLE 1 polyurea Performance Table according to the invention
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. The utility model provides a lining polyurea spraying material preparation facilities is restoreed to non-excavation, includes bottom plate (1) and support frame (2), its characterized in that: the support frame (2) is fixedly connected to the top end of the bottom plate (1), four corners of the bottom end of the bottom plate (1) are provided with a structure (4) convenient to move, the top end of the support frame (2) is fixedly connected with a lower tank body (5), the top end of the lower tank body (5) is provided with an upper tank body (7), a discharge port (3) is fixedly connected to the middle position of the bottom end of the lower tank body (5), one side of the top end of the upper tank body (7) is provided with a water supply cleaning mechanism (12), the top end of one side of the upper tank body (7) is fixedly connected with a liquid raw material inlet (8), the other side of the top end of the upper tank body (7) is provided with a solid raw material inlet (10), a structure (17) convenient to maintain is arranged between the top end of the lower tank body (5) and the bottom end of, a uniform mixing mechanism is arranged in the upper tank body (7);
the homogeneous mixing mechanism includes variable speed motor (11), variable speed motor (11) fixed connection is in the one side on the last jar body (7) top, go up jar one side swing joint on the inside top of body (7) and have first pivot (6), the output of variable speed motor (11) and the top fixed connection of first pivot (6), go up the opposite side swing joint on the inside top of the jar body (7) and have second pivot (15), fixedly connected with blade (16) respectively in the outside of first pivot (6) and second pivot (15), the outside top fixedly connected with first gear (9) of first pivot (6), the outside top fixedly connected with second gear (13) of second pivot (15).
2. The trenchless rehabilitation lining polyurea spraying material preparation device as claimed in claim 1, wherein: the blades (16) outside the first rotating shaft (6) and the blades (16) outside the second rotating shaft (15) are distributed in a staggered mode.
3. The trenchless rehabilitation lining polyurea spraying material preparation device as claimed in claim 1, wherein: the first gear (9) and the second gear (13) are equal in size, and the first gear (9) and the second gear (13) are in meshed connection.
4. The trenchless rehabilitation lining polyurea spraying material preparation device as claimed in claim 1, wherein: convenient to remove structure (4) comprises supporting shoe (401), first screw hole (402), stay bolt (403), inside groove (404), spacing spout (405), spacing slider (406) and shockproof wheel (407), supporting shoe (401) fixed connection is respectively in four corners of bottom plate (1) bottom, the inside of supporting shoe (401) bottom is provided with inside groove (404), the inside both sides of inside groove (404) are provided with spacing spout (405), the top of inside groove (404) is provided with first screw hole (402), stay bolt (403) has been run through to the inside of first screw hole (402), the bottom swing joint of stay bolt (403) has shockproof wheel (407), the both sides of shockproof wheel (407) are fixed connection respectively and are had spacing slider (406).
5. The trenchless rehabilitation lining polyurea spraying material preparation device as claimed in claim 4, wherein: the limiting sliding block (406) is inserted into the limiting sliding groove (405), and the limiting sliding groove (405) is connected with the limiting sliding block (406) in a sliding mode.
6. The trenchless rehabilitation lining polyurea spraying material preparation device as claimed in claim 1, wherein: the water supply cleaning mechanism (12) is composed of a water storage tank (1201), a water suction pump (1202), a ring pipe (1203) and a water spray nozzle (1204), the water storage tank (1201) is fixedly connected to one side of the top end of the upper tank body (7), the water suction pump (1202) is arranged at the front end of the water storage tank (1201), the ring pipe (1203) is fixedly connected to the top end of the inner portion of the upper tank body (7), and the two ends of the bottom of the ring pipe (1203) are fixedly connected with the water spray nozzle (1204) respectively.
7. The trenchless rehabilitation lining polyurea spraying material preparation device as claimed in claim 1, wherein: exhaust purification mechanism (14) comprise exhaust fan (1401), exhaust cylinder (1402), primary activated carbon net (1403), secondary activated carbon net (1404), fixture block (1405) and draw-in groove (1406), exhaust fan (1401) fixed connection is on the top of last jar body (7) one side, exhaust cylinder (1402) sets up the one side at exhaust fan (1401), the inside one side of exhaust cylinder (1402) is provided with primary activated carbon net (1403), the inside opposite side of exhaust cylinder (1402) is provided with secondary activated carbon net (1404), one side difference fixed connection at primary activated carbon net (1403) and secondary activated carbon net (1404) both ends has fixture block (1405), draw-in groove (1406) difference fixed connection is in the both sides at the inside both ends of exhaust cylinder (1402).
8. The trenchless rehabilitation lining polyurea spraying material preparation device as claimed in claim 7, wherein: the clamping block (1405) is embedded in the clamping groove (1406), and a clamping structure is formed between the clamping block (1405) and the clamping groove (1406).
9. The preparation method of the trenchless repairing lining polyurea spraying material as claimed in claim 1, wherein the preparation method comprises the following steps: firstly, starting a variable-speed motor 11, driving a first rotating shaft 6 to rotate by the variable-speed motor 11, driving a second rotating shaft 15 to rotate oppositely by the first rotating shaft 6 through a first gear 9 and a second gear 13, and stirring and mixing raw materials bidirectionally by blades 16 outside the first rotating shaft 6 and the second rotating shaft 15; then, when the water-saving tank is used, the water suction pump 1202 is started, the water suction pump 1202 pumps the water in the water storage tank 1201 out, then the water is sent into the annular pipe 1203, and finally the water in the annular pipe 1203 is uniformly sprayed out of the lower tank body 5 and the upper tank body 7 through the water spray nozzles 1204; secondly, when the air purifier is used, the exhaust fan 1401 is started, the exhaust fan 1401 can extract the air in the lower tank body 5 and the upper tank body 7 and then exhaust the air into the exhaust cylinder 1402, and the first-stage activated carbon net 1403 and the second-stage activated carbon net 1404 in the exhaust cylinder 1402 can carry out two times of filtering, adsorption and purification on the exhausted air; then, when in use, the fin 1701 at one end of the lower tank body 5 and the fin 1701 at one end of the upper tank body 7 are retracted and fixed through the locking bolts 1703, and meanwhile, the rubber sealing ring 1705 can enhance the sealing performance of the joint, so that the lower tank body 5 and the upper tank body 7 adopt a split structure; finally, when the device is used, the long bolt 403 is rotated, the long bolt 403 gradually ejects the shock absorbing wheel 407 out of the inner groove 404, in the process, the limiting slide block 406 slides in the limiting slide groove 405 to play a limiting role, so that the shock absorbing wheel 407 supports the device, the device can be conveniently moved, after the movement is completed, the shock absorbing wheel 407 retreats into the inner groove 404, the support of the support block 401 to the device is recovered, the stability is high, and the device is very convenient to use.
10. A preparation process of a modified polyurea coating uses the trenchless restoration lining polyurea spraying material preparation device as claimed in any one of claims 1 to 8, and is characterized in that high-activity polyether polyol 330N, hydrazine hydrate and an N-alkyl-N, N-dimethyl-N-carboxymethyl ammonium chloride dispersing agent are added into a tank body, the tank body is closed after the air in the tank body is replaced by nitrogen through an exhaust purification mechanism (14), a uniform mixing mechanism is started to stir a premixed base material for 8-16 min, and hexamethylene diisocyanate is gradually dripped into a polyether polyol/hydrazine hydrate system under the condition of vigorous stirring; continuously stirring and reacting for 0.5-1 h, then adding benzoyl chloride, continuously reacting for 0.3-0.6 h, then vacuumizing the interior of the tank body for 2.5-3.5 h through an exhaust purification mechanism (14), and removing micromolecular water and residual monomers to obtain a component A prepolymer required by the polyurea coating; wherein the high-activity polyether polyol accounts for 33-38 wt% of the total weight of the component A, the hydrazine hydrate accounts for 1-4 wt%, the N-alkyl-N, N-dimethyl-N-carboxymethyl ammonium chloride accounts for 3-6 wt%, and the hexamethylene diisocyanate accounts for 58-66 wt%; benzoyl chloride is 0.3-0.6% wt; after the reaction is finished, the prepolymer of the component A is led out from a discharging mechanism (9) for standby;
the inside of the tank body is cleaned by a water supply cleaning mechanism (12), under the protection of a nitrogen environment, acetone which is twice of the total weight of the component B is added into the tank body, 0.3-0.6% wt of N-alkyl-N, N-dimethyl-N-carboxymethyl ammonium chloride is added, 1-3% wt KH550 coupling agent and 26-36% wt of inorganic salt whisker are added, under the condition of continuous stirring, pigment is added, and after being uniformly mixed, the mixture is added into the tank body, wherein the molar ratio of the mixture to hexamethylene diisocyanate is 1: 1, heating the mixture of diethyl toluenediamine and 2- (4-aminophenyl) -5(6) aminophenyl benzimidazole under the condition that the stirring speed of a mixing and stirring mechanism is controlled to be 200-300 rpm, raising the temperature to 48-66 ℃, refluxing for 18-36 min, vacuumizing for 2.5-3.5 h under the conditions of-0.088-0.096 MPa and 88-96 ℃, and removing acetone to obtain a chain extender B component required by the polyurea coating; wherein the molar ratio of the diethyltoluenediamine to the 2- (4-aminophenyl) -5(6) aminophenylbenzimidazole is 0.88-0.99: 0.12 to 0.01; and finally, mixing the prepolymer of the component A and the component B of the chain extender, and spraying for 16-28 s.
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