146results about How to "Guaranteed sealing quality" patented technology

The invention relates to a hole sealing device which is used for deep coal gas extraction and capable of sealing boreholes twice, injecting once and exhausting once and an application method thereof.The device comprises an outer sealing pouch, an inner sealing pouch, an extraction pipe and a slurry injecting pipe which are arranged in boreholes as well as a slurry discharging pipe, wherein the slurry discharging pipe passes through the outer sealing pouch, and an internal opening of the slurry discharging pipe is located in a slurry injection section. The application method comprises the following steps: (1) injecting slurry by utilizing the slurry injection pipe; (2) when slurry injecting pressure is higher than opening pressure of an explosion valve, enabling the explosion valve to be opened, injecting the slurry into the slurry injection section, and exhausting gas in the slurry injection section by virtue of the slurry discharging pipe; and (3) when the whole slurry injection section is full of the slurry, discharging excessive slurry by virtue of the slurry discharging pipe, sealing the slurry discharging pipe, continuously injecting the slurry, and enabling the slurry to enter cracks of coal mass at the periphery of the boreholes. The device provided by the invention has the advantages that the slurry discharging pipe can timely exhaust the gas in a sealing section in slurry injecting and sealing processes, so that the hole sealing quality is guaranteed, and the extraction concentration is improved.

The invention discloses an automatic bag opening and sealing machine. The machine comprises a rack, a bag opening device located on the rack and connected with a vacuum unit, a sealing heating device for heat-bonding a bag, a rail device for the moving of the bag opening device, and an additionally arranged bag pressing device, wherein the bag pressing device is used for tightly pressing two sides of the bag of which the opening is opened, and comprises a sliding claw device and a pressure regulator, the sliding claw device comprises a guide rail mechanism, a push-pull air cylinder mechanism, a sliding claw mechanism and an elevator mechanism, the guide rail mechanism moves under the action of the push-pull air cylinder mechanism, the sliding claw mechanism is driven to move, and further the edge of the bag opening is tightly pressed by the elevating of the elevator mechanism. The invention also discloses an automatic bag opening and sealing method.

The invention discloses a leak-proof bridge expansion joint and a use method thereof, and belongs to the field of bridge construction. The leak-proof bridge expansion joint mainly comprises a bridge pier cap, lateral connection reinforcement, a section steel expansion joint, two deformed steel, section steel connection reinforcement, an M-shaped rubber sealing tape and the like. Upper and lower inflatable bags and a plurality of communicating ducts respectively communicated with the upper and lower inflatable bags are respectively arranged at the upper and lower ends of the two sides of the rubber sealing tape, and the two sides of the rubber sealing tape and the two deformed steel are installed in an embedded way; the rubber sealing tape has an internal inflating or deflating functions by the improvement, i.e., the inflated rubber sealing tape and mounting grooves of the deformed steel can be tightly embedded to ensure the sealing quality of the bridge expansion joint in various use environments, and the deflated rubber sealing tape can freely move to be taken out in the mounting grooves of the deformed steel to facilitate the detection, maintenance and replacement of the rubber sealing tape. The improved structure also has the advantages of simple structure, durability, convenience in maintenance, cost reduction and the like, thus playing an all-weather water leak-proof role.

An embossing unit of paper cup forming machine for embossing on the bottom of square paper cup is composed of a bottom turning over and embossing sleeve with square internal cavity, slide block, height increased ring, embossing bench, slide holder, push rod with oblique structure on its top and transverse bar on its bottom, embossing roller and its axle, and cam on the lift base.

The invention provides a bottled water sealing device, comprising a body, wherein the outer side wall of the body is provided with a placement opening, the inner bottom wall of the body is provided with a lifting mechanism, and the inner top wall of the body is provided with a sealing mechanism. The bottled water sealing device can quickly solidify a sealing film at an opening of bottled water, saves time and labor compared with manual sealing, and has good sealing consistency, ensures the sealing quality of bottled water, and has high sealing efficiency.

The invention discloses a coal mine vertical wind well explosion-proof door advanced explosion venting device and an explosion-proof door. The coal mine vertical wind well explosion-proof door advanced explosion venting device comprises a canopy type door body and an advanced explosion venting device, wherein the advanced explosion venting device comprises an explosion venting cover, a base, a hinge seat, a reset spring and an air reversing lock; the explosion venting cover comprises a metal cover plate, a sealing block and a cushion pad respectively adhered on the upper board and the lower board of the metal cover plate; a hinge head is arranged at one side of the metal cover plate, the hinge head is hinged with the hinge seat through a hinged shaft; a spring coil part of the reset spring is sleeved on the hinged shaft of the hinge seat, one pin thereof is fixed on the hinge head, and the other pin is overlapped on the hinge seat; the air reversing lock comprises a lock groove on the base and a spring bolt on the metal cover plate; a plurality of trapezoid explosion venting holes are equidistantly arranged on the canopy type door body around the center circumference; the lower end of the base is welded and fixed at the periphery of the explosion venting hole; and the hinge seat is welded and fixed on the canopy type door body. When the existing explosion-proof door is updated and transformed by using the explosion venting device disclosed by the invention, only the canopy type door body needs to be transformed, the work amount is small and the cost is low.

The invention discloses an air exhaust and sealing device for a wire and cable material packaging bag, and belongs to the technical field of packaging machinery for plastic particles for wires and cables. The air exhaust and sealing device comprises a box body, an air exhaust mechanism, a bag opening heat-sealing mechanism and a packaging bag supporting mechanism, wherein a box body cavity is formed in the box body; an electrical operation control box is arranged at the top of the box body; the air exhaust mechanism is arranged at the upper part of the front side of the box body; the bag opening heat-sealing mechanism is arranged at a position, corresponding to the lower side of the air exhaust mechanism, on the front side of the box body; the packaging bag supporting mechanism is positioned at a position corresponding to the lower side of the bag opening heat-sealing mechanism and is supported on a terrace of a use place along with the box body; the air exhaust mechanism and the bag opening heat-sealing mechanism are connected with the electrical operation control box in an electrical control manner. According to the air exhaust and sealing device, the sealing efficiency is improved, and the packaging requirement on wire and cable materials for industrial enlargement production is met; the labor intensity is alleviated; the packaging bag can be sealed under the vertical state.

The invention relates to a deep sea extreme environment simulation system. The deep sea extreme environment simulation system comprises a Raman reaction chamber, a sample injection supercharging device, a Raman spectrum collecting system and a temperature control device. The Raman reaction chamber comprises a chamber body, a chamber cover and an immersed type Raman probe. A sample injection supercharging channel is formed in the chamber body, the sample injection supercharging channel is connected with the sample injection supercharging device, the chamber cover is movably connected to the topof the chamber body, the immersed type Raman probe is fixed to the upper portion of the top of the chamber body through the chamber cover, the immersed type Raman probe is connected with the Raman spectrum collecting system, and the front end of the immersed Raman probe extends into the chamber body. The deep sea extreme environment simulation system is simple in structure, high in stability, andhigh in high temperature resistant and corrosion resistant ability, can remain the state of high temperature and high pressure for a long time, and can achieve simulation of the deep sea extreme environment at the pressure of 0-60MPa and at the temperature of 0-450 DEG C. The Raman spectrum collecting system with the long-term continuous monitoring function achieves real-time control over the ingredients and the concentration of a sample in the chamber, and the deep sea extreme environment simulation system can be widely applied to simulation of extreme environments such as deep sea hydrothermal solutions and cold springs.

The invention provides a device capable of replacing a valve under pressure. The device comprises a plugging device, a combining part, a blowout prevention pipe, a hydraulic cylinder, a piston rod and an operating rod. One end of the combining part is detachably connected to the plugging device, and the blowout prevention pipe contains the plugging device and the combining part and is connected with the hydraulic cylinder. The plugging device is mainly composed of a sealing rubber sleeve, a slip bowl seal assembly, a differential pressure type piston and slips, the slips can be automatically unfolded through fluid pressure, and thus safe bowl seal is achieved. One end of the combining part is connected with the hydraulic cylinder through the piston rod and the operating rod which penetrate through the blowout prevention pipe. The invention further provides a method for replacing a valve under pressure with the device capable of replacing a valve under pressure. The device achieves seal, bowl seal, seal removal and internal pressure balance of a tool, the complex functions can be continuously and automatically completed in one travel, and thus the device is easier and more reliable to operate. Uncertainty caused by manual operation is reduced, safety in the construction process is guaranteed, no pollution will be caused to the environment, and construction cost is greatly reduced.

The invention relates to an air heater, in particular to a digital controller which can timely change the shift of the air nozzle of the air heater as well as the control method thereof. The invention utilizes the air heater to whiff the heated air on a belt via the air nozzle, the melted belt and the material are pressed by a roller for sealing, and the digital control nozzle locating device is used to control the shift of the air nozzle of the air heater. The digital control nozzle locating device provided by the invention can control the locating of the air nozzle according to the speed of the material in sealing, thermal transfer can be adjusted effectively, and the belt can be jointed with the material without the influence of uneven melting, thereby effectively guaranteeing the sealing quality of the material.

The invention discloses a hollow glass glue injection and sheet combining all-in-one machine. The all-in-one machine comprises a machine frame, a sheet combining device and a glue injection device, wherein the a supporting plate is fixed on the transmission side of the machine frame; the sheet combining device sleeves the supporting plate, and the sheet combining device comprises a sheet combiningpressing plate, an upper push-pull rod, a lower push-pull rod, a connecting rod device and a hydraulic telescopic device; and the glue injection device is arranged on a structure support at the middle part below the front side of the supporting plate, and the glue injection device comprises an X-axis sliding table module, a Y-axis drilling machine sliding table module, a Y-axis glue injection sliding table module, a first drilling machine, a second drilling machine, a glue injection gun and an air cleaning gun. According to the hollow glass glue injection and sheet combining all-in-one machine, a sheet combining machine and a glue injection machine are combined into one, the structure is compact and simple, the total length of the hollow glass production line is effectively shortened, theoccupied area is reduced, the manufacturing cost is reduced, the production efficiency is improved, the hollow glass is secondarily sealed in a glue injection mode, and therefore the sealing qualityof the hollow glass can be effectively guaranteed.

The present invention relates to an electrically-controlled gasoline injector. It includes the following several portions: shell body, valve core, metering orifice valve seat, iron core and guide bushing, electromagnetic coil, demagnetization piece, oil inlet pipe, spring and plastic outer shell. Said invention also provides the connection mode of all the above-mentioned portions and also provides the production method of said electrically-controlled gasoline injector.

The invention discloses a water and slag discharging device for a coal and rock mass with fracture development. The device includes a cylinder diving into a downward borehole and a drainage pipe inserted into a lower portion of the cylinder and further includes a blowing pipe, wherein an outlet end of the blowing pipe is flush with the bottom of the cylinder, the top of the cylinder is provided with a cover, the bottom is provided with a unidirectional conduction mechanism, the cylinder is provided with an intake and exhaust device, the accumulated water in the borehole is sucked by the intakeand exhaust device into the cylinder through the unidirectional conduction mechanism during exhausting, in the intake process, the accumulated water is pressed outside the borehole through the drainage pipe. The device is advantaged in that the compressed air in the underground is utilized as the power, firstly, the accumulated water and the slag in the borehole are stirred by the blowing pipe, when the intake and exhaust device is in the exhaust state, the accumulated water mixed with the slag enters the cylinder, the compressed air is filled into the cylinder through the intake and exhaustdevice, and the accumulated water and the slag are discharged from the cylinder to the outside of the borehole.

The invention discloses a clamping device for automatic welding of a small tank body and a use method thereof, and relates to the technical field of metal tank body manufacturing. The clamping deviceincludes a supporting plate, a supporting frame and Foma wheels; the supporting plate is horizontally installed at the top of the supporting frame, Foma wheels are vertically installed at the bottom of the supporting frame, and a rectangular installation groove is formed in the middle of the supporting plate; a movable clamping assembly is slidably arranged in the position, close to the right side, of the installation groove for automatically clamping a lower half of the tank body, and can drive the lower half of the tank body to move to the left until the lower half of the tank body is in close contact with an upper half of the tank body; a fixed clamping assembly is fixedly arranged in the position, close to the left side, of the installation groove for clamping the upper half of the tank body automatically, and can drive the upper half of the tank body and the lower half of the tank body to rotate intermittently towards the fixed direction simultaneously to complete the overturningrequirements for welding the tank body. The clamping device for automatic welding of the small tank body has the characteristics of reasonable structure, convenient use, easy manufacturing and maintenance, and good practicability.

The invention discloses a temperature measuring device for a heat-conducting medium in thin film production equipment, and is characterized in that an open end of a temperature measuring tube is connected to the wall of a pipeline of the heat-conducting medium in a sealed manner, the other end of the temperature measuring tube is a closed end and is dipped into the heat-conducting medium of the pipeline, a thermal resistance thermodetector is inserted into the temperature measuring tube, and a measuring head of the thermal resistance thermodetector is in tight contact with the inner wall of the bottom end of the temperature measuring tube. When the temperature measuring tube and the ambient heat-conducting medium reach a heat balance, a value measured by the thermodetector is a temperature value of the heat-conducting medium. Flanges arranged at two ends of a mounting tube are connected to the middle of the pipeline of the heat-conducting medium in a sealed manner, and the heat-conducting medium flows through the mounting tube. The wall of the mounting tube is connected to the open end of the temperature measuring tube in a sealed manner. A joint fixed on the mounting tube is connected to the thermal resistance thermodetector and is locked by a fixed nut. The output end of the thermodetector is connected to a computer control device, and the temperature of the heat-conducting medium is automatically adjusted. According to the invention, the measuring head of the thermal resistance thermodetector is in indirect contact with the heat-conducting medium, so that the measuring head is easy to mount and dismount, and sealing of the pipeline cannot be influenced; the thermal resistance thermodetector, the temperature measuring tube and the mounting tube are integrated so as to facilitate field installation and ensure sealing quality.

The invention discloses a novel full-automatic down filling machine, which comprises a weighing cabinet, a down filling pipe, a telescopic device, an opening sealing device and a locking and clamping device, wherein the down filling pipe is arranged on the weighing cabinet, the front end of the down filling pipe is provided with the opening sealing device, the telescopic device is used for controlling the down filling pipe and the opening sealing device to relatively and horizontally move, and the front end of the down filling pipe is provided with the locking and clamping device. The novel full-automatic down filling machine has the advantage that after a down cut sheet is filled, the telescopic device is used for controlling the down filling pipe and the opening sealing device to relatively and horizontally move, then a third driving device and a fourth driving device respectively drive a first clamping block and a second clamping block to move along a first fixing block in the left and right directions to do relative movement, and further drive a third clamping block and a fourth clamping block to move along a second fixing block in the left and right directions to do relative movement so as to play a role of leveling the to-be-sealed opening of the cut sheet, the to-be-sealed opening of the cut sheet is leveled, and finally the cut sheet is subjected to opening sealing by the opening sealing device, so the opening sealing quality is ensured, and the quality of down products is further ensured.

The invention discloses an express item packaging box process sealing equipment and sealing method for logistics transportation. The equipment comprises an outer framework. A plastic bottom plate is welded to the bottoms of the opposite sides of the outer framework. Power shafts are connected to the two sides of the tops of the opposite sides of the outer framework in a penetrating manner. The outer side of each power shaft is connected with a conveying roller in a sleeved manner. The outer side of each conveying roller is connected with a conveying belt in a sleeved manner. A temporary storage device is arranged on the right side of the outer framework. The invention relates to the technical field of logistics. According to the express item packaging box process sealing equipment for logistics transportation, a whole process system is adopted for carrying out covering and packaging operation on express item packaging boxes, the step of manually packaging express items is omitted, theworkloads of deliverymen are reduced, and meanwhile the express item packaging efficiency is greatly improved; and designed magnets are mainly used for attracting multiple covering side plates to getclose to each other through the characteristic that opposites attract, meanwhile, the attraction force of the magnets and the covering side pates can increase the pressure applied by the covering sideplates to the packaging boxes, and covering quality is guaranteed.

The invention relates to an apparatus for welding seals of medical sterilized cotton swabs. The apparatus comprises the following components: a first welding die body, which comprises a first surface and a second surface which is opposite to the first surface, wherein at least one accommodating cavity for containing one cotton swab is formed on the first welding die body, the accommodating cavity system comprises an open end and a closed end, the open end is arranged on the first surface, and the closed end is arranged on the second surface; a second welding die body, which is adjacent to the first welding die body and opposite to the second surface; wherein the first welding die body is a die heater heating area, and the second welding die body is a high-frequency welding heating area. The welding apparatus replaces traditional manual assembly modes, realizes automatic industrial production, and substantially improves production efficiency; more importantly, the welding apparatus guarantees seal quality of cotton swabs, and improves production technology.

Provided is a welding method of air cooled condenser single row tube and tube plate employing carbon dioxide and argon mixed gas protection; in the welding process, argon and carbon dioxide gas mixed by volume percent is used, no defect is existed, the hot compress rate of the welded joint is the best, the quality of the welding joint is stable, and splatter is not existed; the single row tube is prevented from being damaged by external force, solder collision is avoided, and the sealing quality is ensured; the existing welding method using only the carbon dioxide as the protective gas is changed, the welding method employing carbon dioxide and argon mixed gas protection is used, thereby meeting the requirements that the electric arc is stable, the metal splatter is less, the formed welding joint is good in appearance, the impact toughness of the welding joint is good, and the welding technology is good in effect, and the like.

The invention relates to packaging machinery, especially to a beverage filling system. The system includes a conveyor belt, and a cup supplying machine, an automatic ingredient filling machine, a heatsealing machine and a cutting machine which are arranged on the conveyor belt in order. The device integrates cup supplying, ingredient filling, heat sealing, cutting and other filling operations, greatly reduces working time, improves the working efficiency, facilitates material feeding, guarantees the sealing quality, and has strong application prospects.

The invention relates to a gas draining pipe, and in particular to a structure of a duplex pipe for gas draining and hole sealing by grouting, belonging to the technical field of the gas draining pipe for coal mine. The duplex pipe is characterized in that the central axis of the gas draining pipe and the central axis of a grouting pipe are arranged in parallel in the same direction; the gas draining pipe and the grouting pipe are clung to each other and are connected integrally; the duplex pipe is operated by a method as follows: the orifice of the grouting pipe is plugged by a rubber rod at the plugging end of the duplex pipe; one or more grouting holes are drilled in the wall of the grouting pipe; the aperture of the grouting hole is the same as the internal diameter of the grouting pipe; and the other end of the grouting pipe is connected with a quantitative grouting pump, so that grouting liquid enters a gap between the outer side of the draining pipe and the inner wall of a drilled draining hole from the grouting hole of the grouting pipe. The duplex pipe for gas draining and hole sealing by grouting provided by the invention has the beneficial effects that the duplex pipe has a simple structure, can be formed in one step on an extruder, and is convenient to manufacture; and the duplex pipe also has the beneficial effects that the duplex pipe is convenient to operate, the subsequent hole sealing construction process is greatly simplified, and the duplex pipe has good gas tightness.

The invention relates to the technical field of food processing, and discloses a sealing machine for food processing. The sealing machine comprises four driving wheels, wherein the exteriors of every two driving wheels are movably sleeved with an annular thin belt, heating blocks are movably mounted at one ends of the inner sides of the annular thin belts, and heat transfer sheets are movably mounted at the top ends of the heating blocks. According to the sealing machine, gas in gas bags expands when heated, then the heating blocks extrude the annular thin belts downwards, then the contact area between packaging bag films is increased, heat energy conduction is effectively promoted, and the film melting degree is better; the gas bags are subjected to heat conduction and cooling in time through heat conduction sheets, the influence of excessive expansion of the gas bags on sealing is avoided, heat dissipation of the heating blocks can also be promoted, and mechanical damage caused by overheating of heating parts is avoided; and wind energy used by cooling mechanisms is conducted and conveyed again through air conveying belts, the heat dissipation effect of parts in a heating mechanism in the sealing machine is enhanced, and the stability of equipment and the sealing quality are effectively guaranteed.

The invention discloses a sterile canning sterilization system and method for solid food. The sterile canning sterilization system involves a food sterilization main pot, a can body sterilization auxiliary pot, a can cover sterilization auxiliary pot and a canning sealing cavity for connecting the three pots, wherein each of pot bodies is provided with a steam inlet, an exhaust port, a gas release port and a sterile nitrogen inlet correspondingly. In order to shorten the heating time and improve the taste of the canned food, according to the sterile canning sterilization system and method for the solid, thermal sterilization of the food is carried out before canning and sealing, and the food makes direct contact with steam, so that heat transfer is fast, the sterilization time is greatly shortened, and the taste of the food is effectively improved.

The invention discloses an automatic weighing, sealing and seaming device for a wire and cable material, and belongs to the technical field of packaging machinery for plastic particles for the wires and cables. The automatic weighing, sealing and seaming device comprises a weighing device supported on the terrace under a used state, a sealing device, a seaming device and a packaging bag supporting device, and is characterized in that the weighing device, the sealing device and the seaming device are arrayed on the same straight line in an arranging manner of left to right; the packaging bag supporting device is supported on a terrace of the use place at the position simultaneously corresponding to the lower parts of the front sides of weighing device, the sealing device and the seaming device. The automatic weighing, sealing and seaming device achieves a good coherence effect; the space is saved, and the adaptability to a packaging place is improved; the labor investment is reduced; furthermore, the sealing efficiency is improved; the labor intensity of an on-line worker is relieved, and the labor cost is reduced so as to save precious labor resources; the sealing quality is guaranteed; the packaging bag can be sealed under a vertical state; the automatic weighing, sealing and seaming device has an effect of preventing the wire and cable material in the bag from leaking from the bag opening.

The invention discloses a combined sealing connecting method for plastic pipes and belongs to the technical field of plastic pipes. Two plastic pipes, needing to be connected, with the same pipe diameter are horizontally placed; then the inner wall of a connecting casing pipe is provided with a sealing ring and a heating element; then the connecting casing pipe is firstly sleeved with the left plastic pipe, and then the right plastic pipe is in butt joint with the left plastic pipe; and then the heating element is electrified and melts the inner wall of the connecting casing pipe and the outerwalls of the plastic pipes in a heating manner. A rubber sealing ring and heating element melting and welding double-sealing technological means is adopted, pipeline connection is firmer, sealing isensured, and leakage is avoided; and the combined sealing and connecting method is widely applied to the fields of civic building water supply and drainage, gas and industrial pipelines and the like.

The invention discloses high-strength low-hydration-heat well cementation cement, and relates to the technical field of well cementation materials used for oil exploration and development. The high-strength low-hydration-heat well cementation material comprises the following components in percentage by mass: 65%-81% of a high-strength low-hydration-heat wellcementation material, 10%-20% of a low-hydration-heat active material, 4-8% of a reinforcing agent, 4-6% of an anti-shrinking agent and 0.5-1.5% of an early strength agent. The high-strength low-hydration-heat well cementation cement is suitable for long-sealing high-temperature large-temperature-difference stratums, well cementation construction safety of long-sealing high-temperature large-temperature-difference low-pressure leaky stratums is guaranteed, high efficiency and exploitation safety of oil and gas resources are improved, and the national requirements for deep and ultra-deep oil and gas resources are met.

The invention relates to a suspended cement plug applicable to continuous oil pipe injection and an application method of the suspended cement plug. The suspended cement plug comprises the following three formulae: a reservoir cement formula, an intermediate layer isolating liquid formula and a surface layer cement plug formula, wherein the reservoir cement formula is prepared by adding 1%-2% of a dispersant, 1%-2% of a fluid loss agent, 5%-10% of micro-silicon and 0.1%-0.5% of a retarder into G-level high sulfate resistant oil well cement, and the water cement ratio is 0.45; the intermediate layer isolating liquid formula is prepared by starting to apply 0.5% polyacrylamide water solution to a position which is 500m lower than the contact surface between clean water and a surface layer cement plug, and the 0.5% polyacrylamide water solution needs to be prepared before 4h; the surface layer cement plug formula is prepared by adding 1% of a dispersant, 1% of a fluid loss agent and 0-0.2% of a retarder into the G-level high sulfate resistant oil well cement, and the water cement ratio is 0.45. According to the suspended cement plug, expensive cement slurry is replaced with intermediate layer isolating liquid, so that the production cost is greatly lowered when the sealing quality is guaranteed, and furthermore, the cement slurry at the reservoir and the surface layer is good in performance and rheological property and strong in anti-pollution capacity and can still maintain good overall performance when 20% of cement slurry is polluted. The suspended cement plug is applicable to the sealing of abandoned wells.

The invention discloses a high-rate quick-setting mining hole sealing material and a using method thereof, and belongs to mining hole sealing materials. The hole sealing material is prepared from thefollowing raw materials in percentage by mass: 10%-30% of quick-setting powder, 60%-80% of Portland cement, 1%-6% of bentonite, 0.3%-0.5% of sodium chloride, 0.1%-0.3% of sodium aluminate, 3%-8% of quick lime, 0.05%-0.2% of a water reducing agent and 0.05%-0.2% of an active agent through even stirring according to the mass ratio of 1: 1.6-2. The hole sealing material is high in multiplying power and short in setting time, the expansion multiplying power ranges from 10% to 100%, the final setting time is shorter than 120 min, the compressive strength and the setting time are not affected whilethe multiplying power is improved, the strength and the setting time of gas extraction are met, and the long-term effect of hole sealing is guaranteed. Due to the high-expansion property of the hole sealing material, the pipe wall is filled with the hole sealing material, gas leakage caused by pores is avoided, the safety performance is improved, materials are saved for extraction pipes with the same length, and the gas extraction cost is reduced. The hole sealing material has the advantages of low price, no toxicity, no pollution, high hole sealing efficiency, favorable flowability and favorable plasticity.

The invention discloses packaging and code printing integrated automatic equipment for condiments, which comprises a machine base, machine frames, frame plates, transmission rollers and a clamping mechanism; a driving mechanism is mounted on a mounting seat, two sets of clamping arms are rotationally connected to the end, close to a hanging plate, of the mounting seat, a driving motor is mounted at one end of the hanging plate, and an output end of the driving motor is in transmission connection with a screw rod; and the outer side of the screw rod is in screwed connection with a screw sleeve, and supporting rods are rotationally connected between the screw sleeve and the clamping arms. According to the packaging and code printing integrated automatic equipment for condiments, firstly, the driving mechanism is controlled to enable supporting arms to be separated towards the two sides at the same time so as to open a condiment packaging bag, glue is controlled to overflow from a glue coating nozzle and is evenly smeared on the sealing portion of the condiment packaging bag, and the sealing quality of the condiment packaging bag is guaranteed; and secondly, the sealing and code printing integrated structure is adopted, and the automatic equipment can execute two groups of programs at the same time, so that the processing efficiency of processing factories on condiment packaging bags is improved, and the production cost of the factories is reduced.

The invention discloses a damping compensator which is arranged on the inlet and outlet of a pump, and comprises an S-shaped corrugated pipe and connecting flanges which are movably sheathed on the straight sections of the two ends of the corrugated pipe; the wave trough of the corrugated pipe is provided with a rubber ring the cross section of which is in a tadpole shape; the connecting flange is in a hollow out structure; the straight section is welded with a V-shaped groove pad to be used as a connection seal element; the S-shaped corrugated pipe is adopted in the damping compensator; and a high-quality rubber ring is inlaid between the wave troughs, thus satisfying the requirements of damping, and preventing the extrusion deformation caused by the too-large deformation of the corrugated pipe; the V-shaped groove pad ensures the sealing quality and simultaneously reduces the energy transmission, thus enhancing the damping effect; and the connecting flange is in a hollow out structure, has the characteristics of simple structure, light weight, saved cost and good damping effect, and is easy to popularize and use.