190results about How to "Speed up emissions" patented technology

The invention relates to a method for extracting gas in low air permeability coal layer by pulse fracture anti-reflection, comprising the following steps: firstly using the blast-proof pulse-type coal layer high pressure water injector with adjustable frequency and pressure from the coal layer, high tunnel or low tunnel; using the pulse water effect generated by the periodical change of high pressure pulse water inside the drill hole of coal body, wherein the maximum pulse pressure is 35 MPa, the flow is about 300 L / min, and the pulse frequency is 0-1460 times / min; forcing the macroscopic fracture in the coal layer to be expanded and communicated; promoting the micro-pore fracture to be formed and extended; forming a new regeneration fracture net; providing a permeable channel of water inthe coal layer so as to achieve the effects of improving the mechanical property of the coal body, reducing the stress of the coal body in front of the working face and improving the discharge rate of the gas. Through the method, the pressure releasing range of the coal layer is enlarged, the whole pressure is adequately released, the radius of influence range of fracture can reach 10-40 m, and the air permeability of the coal body can be improved by 100-1000 times; and the method is simple, easy to operate and good in effect.

The invention discloses sorting technology for a coarse coal slurry damping pulsation interference bed. The sorting technology is formed by the mutual connection of an interference bed sorter, a feeding system, a peristaltic pump, a cleaned coal recovering system, and a water pump, and is characterized in that the inside of the interference bed sorter is added with a plurality of damping blocks and screens; the middle part of the interference bed sorter is connected with the feeding system to form a stable fluid bed; simultaneously, a diaphragm is additionally arranged on the lower part of the interference bed sorter and the upper part of a heavy product discharge port to generate a pulsating flow, so that particles with different densities gain the accelerating effect and retarding effect, and the leading action of the density on the separation effect is strengthened; the peristaltic pump is used for discharging heavy products, so that the processing capability of the equipment is improved; under the conditions of wide particle size range of the coarse coal slurry and heavy processing load, the good separation effect and high separation efficiency can also be achieved by the separation process.

The invention provides a graphite powder purification method. The method comprises the following steps: graphite powder to be purified is placed into a high-temperature sealed kiln and undergoes vacuum calcination in the atmosphere of protective gas; when the calcination temperature reaches 2,000-3,000 DEG C, multiple pneumatic control variation steps are carried out to control periodic pulsative oscillation change of air pressure in the high-temperature sealed kiln. Each pneumatic control variation step contains a gas withdrawal step and a gas injection step. For 1-3 h of each pneumatic control variation step, range of pressure change in the high-temperature sealed kiln is controlled to 1-10 kPa. According to the invention, the graphite powder with high carbon content can be obtained under the condition of low calcination temperature. The preparation process is simple, and the requirement on equipment is low.

The invention discloses a water tank with a filter net structure. The water tank with the filter net structure comprises a water tank body and a water outlet formed in the bottom of the water tank body, and is characterized in that a slidable filter net, which is perpendicular to the bottom of the water tank body, is arranged in the water tank body. The water tank with the filter net structure has the advantages that food residues can be isolated on one side of the water tank by pushing the filter net after the water tank disclosed by the invention is used for washing, and then sewage can be discharged by opening the water outlet, so that the sewage discharging can be accelerated; meanwhile, the sewage does not contain or contains an extremely small quantity of food residues, and thus the food residues are not easily accumulated in a drain pipe to produce odor.

The invention provides a water permeable brick and a water permeable brick road surface paving method. The method includes the steps of: arranging a seepage storage guiding pipe bracket in a three-dimensional net-like shape above basic soil; paving a pack layer in the gaps in the seepage storage guiding pipe bracket; paving a water permeable brick layer at the upper side of the pack layer in a tightly attached manner, wherein the seepage storage guiding pipe bracket is communicated with a water storage channel at the bottom of the water permeable brick layer. During the pavement, the water permeable brick is made from a water impermeable material, wherein arc-shaped grooves, having the same structure, are arranged in a first side surface and a second side surface of the brick body, which are opposite to each other. The arc-shaped grooves are formed in the lower part of the brick body; the axes of the arc-shaped grooves are in parallel with the first / second side surfaces; the first sidesurfaces / second side surfaces of two brick bodies are attached to each other to form the water storage channel formed from the two arc-shaped grooves. The water permeable brick has long maintenance and management cycle, is strong in anti-freeze thawing capability, and is high in water storage and permeation performances.

The invention discloses a sewer cover plate with an auxiliary drainage set. The sewer cover plate comprises a sewer cover plate body (1). A water pump (2) and a controller (3) are disposed at the bottom of the sewer cover plate body (1). A water level sensor (4) is disposed at the top of the sewer cover plate body (1). A solar power supply system is arranged above the sewer cover plate body. The solar power supply system, the water pump (2) and the water level sensor (4) are all connected with the controller (3) through wires. The sewer cover plate speeds up drainage of rainwater, prevents pooling of pavements, and is simple in structure, low in modification cost and suitable for various cities.

The invention discloses a liquid nitrogen freezing-type rock cross-cut coal uncovering method. The method comprises the following steps: when the coal uncovering face is close to a safety rock pillar,the coal uncovering face is provided with several freezing boreholes, which pass through the safety rock pillar and the coal seam; the freezing boreholes are injected with water; thermometer holes are arranged at one side of the freezing boreholes, temperature tubes are distributed inside the thermometer holes, and the thermometer holes are sealed; a freezing tube and a slip-casting steel pipe are distributed in each of the freezing boreholes; the freezing boreholes are injected with slurry to fasten the coal body; liquid nitrogen is injected into the freezing tubes and the liquid nitrogen absorbs heat of the coal seam during the gasification process so as to freeze and solidify the coal seam; temperature of the coal seam at the freezing region is monitored by the utilization of the thermometer holes to ensure that the coal seam is fully frozen, and then rock cross-cut is uncovered. The method of the invention has short construction period, is time-saving, has a good solidification effect on the coal seam, and can help raise efficiency and safety of the rock cross-cut coal uncovering operation effectively.

The invention discloses an emergency anti-flood drainage well lid. The emergency anti-flood drainage well lid comprises a main body; a drainage cavity is formed in the main body; six rotating cover plates are mounted in the drainage cavity in an annular array mode; two drainage holes are formed in the rotating cover plates; the drainage holes can be used for daily drainage; extension devices are arranged in the rotating cover plates; and the extension devices comprise extension shafts inside. The daily drainage work can be performed through the drainage holes on the rotating cover plates; solid garbage in sewage is filtered and separated through a filter vibration device; the separated garbage is collected through a filter cavity to prevent blockage of a drainage cavity and to accelerate circulation of the sewage; secondly, the rotating cover plates can be rotated to drive stretching of the extension shafts, so that the water inlet quantity of the drainage cavity is increased, and thedischarge quantity of the sewage is increased; and the emergency anti-flood drainage well lid can be used for the anti-flood work, and guarantees the pedestrian or vehicle passing safety.

The invention relates to an oven with a drying function, which comprises an inner container, a baking tray is transversely arranged in the inner container, an exhaust port is formed in a top plate ofthe inner container and communicated with an exhaust passage with an exhaust fan through fluid, and the oven further includes a lifting device capable of driving the baking tray to reciprocate up anddown. Compared with the prior art, according to the invention, the baking tray can reciprocate up and down under the action of the lifting device; food to be dried placed on the baking tray shakes relative to the baking tray in the up-down reciprocating motion process of the baking tray. Meanwhile, in the working process of the oven, the exhaust fan rotates to form negative pressure in the exhaustpassage; hot air flow from bottom to top is formed in the inner container through the exhaust port, and food particles separated from the surface of the baking tray are completely exposed in the hotair flow to shake under the combined action of the hot air flow and the gravity of the food particles, so that heat exchange and water exchange are quickly performed, and food is quickly dried.

The invention provides a composite geotextile and a drainage reinforcing structure. The composite geotextile comprises an upper fabric layer, a middle fabric layer and a lower fabric layer which are sequentially arranged from top to bottom, the upper fabric layer is a water absorption and drainage geotextile, and the water absorption and drainage geotextile comprises first warp yarns and first weft yarns; wicking fibers are contained inside the first warp yarns and / or the first weft yarns, and a plurality of first through holes are formed between the first warp yarns and the first weft yarns;the middle fabric layer is a geotechnical filter screen, and a plurality of second through holes are formed in the geotechnical filter screen; the lower fabric layer is reinforced geotextile, a plurality of third through holes are formed in the reinforced geotextile, the hole diameters of the second through holes are larger than those of the first through holes and the third through holes respectively, and the first through holes, the second through holes and the third through holes communicate with each another. The drainage reinforcing structure comprises the composite geotextile. The composite geotextile and the drainage reinforcing structure have good soil water absorption and drainage capacity and long service life.

The invention discloses a self-cleaning chimney. The self-cleaning chimney comprises a chimney body; two mounting rods are symmetrically and fixedly connected to the inner side wall of the chimney body, a fixing seat is mounted between the two mounting rods, a rotating rod is vertically inserted on the fixing seat, and the rotating rod penetrates through the fixing seat; a wing plate is horizontally mounted at the bottom end of the rotating rod, the two ends of the wing plate are connected with stainless steel scraping sheets correspondingly, and the bottom ends of the two stainless steel scraping sheets are connected with the wing plate as well; and a first bevel gear is mounted at the top end of the rotating rod, a driving motor is mounted on the outer side wall of the chimney body, anda connecting rod is mounted on a motor shaft of the driving motor through a coupling. According to the self-cleaning chimney, a driving mechanism is transferred to the exterior of the chimney, a scraping brush mechanism is arranged to clear the inner wall of the chimney body, meanwhile, the wing plate is utilized to assist smoke in being upwards discharged, the circulating area of the interior ofthe chimney is increased, meanwhile, power during smoke discharging is improved, flue gas is promoted to be discharged more quickly, and the discharging efficiency is greatly improved.

The invention provides exhaust gas treatment equipment used for industrial environmental protection. The exhaust gas treatment equipment used for industrial environmental protection comprises a base,a filtering tank, filtering water, a gas inlet pipe, a fixing flange, an inlet gas dedusting pipe structure, an unpleasant odor adsorption board structure, an adjustable environmental protection boardstructure, a gas outlet filtering pipe structure, a water inlet pipe, a sealing cap, a drainage pipe, a manual valve, a drainage band, a fixing box, an accumulator, a photovoltaic converter and an exhausting switch. According to the exhaust gas treatment equipment used for industrial environmental protection, by arranging a collecting pipe, an insertion frame, a collecting box, a stainless steelfiltering net, a nylon net and a glass fiber filtering net, the exhaust gas treatment equipment used for industrial environmental protection is beneficial for filtering large particles in exhaust gas,treatment is facilitated, and environmental pollution is prevented; by arranging an HEPA filtering net, an activated carbon filtering net and a sleeve pipe, the exhaust gas treatment equipment used for industrial environmental protection is beneficial for filtering exhausted air, so that air pollution is prevented; by arranging an adjustment board, solar panels, the accumulator and the photovoltaic converter, the exhaust gas treatment equipment used for industrial environmental protection is beneficial for power generation by means of solar energy, energy saving is facilitated, and an environmental protection effect is achieved.

The invention relates to the field of tunnel engineering, in particular to a tunnel drainage pipe crystallization prevention and control system and method. The prevention and control system includes awater tank and a water outlet pipe, wherein the water tank is arranged below the tunnel track surface, and an elastic partition film is arranged at the top of the water tank; one end of the water outlet pipe is connected with the water tank, and the other end of the water outlet pipe is used for connecting a transverse blind pipe and / or a longitudinal blind pipe in a tunnel; and the water outletpipe is internally provided with a first one-way valve for limiting the flow of liquid along the direction from the water tank to the water outlet pipe. The prevention and control method is based on the prevention and control system. The tunnel drainage pipe crystallization prevention and control system and method can use piston wind energy and / or natural wind energy in the tunnel to speed up theliquid flow rate in a drainage pipe, so that the problem of drainage pipe blockage is improved, and the tunnel drainage pipe crystallization prevention and control system and method have the advantages of energy saving and low operating cost.

The invention discloses a humidifier with a handle with an air channel. The humidifier comprises a humidifier body. The humidifier body comprises a shell, an atomization cavity arranged in the shell, an atomizer arranged in the atomization cavity, and a mist outlet upper cover arranged at the upper end of the shell. The shell is externally provided with an LED lamp strip. The atomizer is connected with a timer. The atomization cavity is provided with a mist outlet communicating with the mist outlet upper cover. The mist outlet upper cover is provided with a mist discharge outlet. A fan is arranged at the bottom of the shell, and the handle internally provided with the handle air channel is arranged on the side face of the shell. One end of the handle air channel is connected to an outlet of the fan. The other end of the handle air channel is connected to the mist outlet. Airflow blown out by the fan is mixed with mist after passing the handle air channel and discharged out from the mist discharge outlet of the mist outlet upper cover finally. The mist discharge speed of the atomization cavity is increased, and the humidification efficiency of the humidifier is improved. In addition, the air channel is reasonable in arrangement, the structure is compact, and carrying is convenient.

The invention discloses an ink spraying type liquid crystal coating machine and an exhaust method for the nozzle of the coating machine, and aims to reduce the liquid crystal loss, and accelerate the exhaust speed of gas in the nozzle of the coating machine. The coating machine comprises a liquid storage device, an injector, the nozzle, a first communicating pipeline, a second communicating pipeline, a third communicating pipeline, a first control valve, a second control valve, a third control valve, and a fourth control valve, and further comprises a seal cover for at least hermetically covering the outlet of the nozzle, and a fifth control valve arranged on the third communicating pipeline, wherein when the first to fourth control valves are all opened and the fifth control valve is closed, the injector, the nozzle and the liquid storage device are communicated with one another; when the first control valve, the fifth control valve and the third control valve are all opened and both the second control valve and the fourth control valve are closed, the injector and the liquid storage device are communicated with each other.

The invention provides a high-efficiency condensation-type flue gas waste heat recycling device. The device comprises a condensation outer shell, a condensation inner shell and a condensate pipe unit, wherein the condensation outer shell comprises a condensation chamber; the condensation inner shell comprises a condensation inner chamber; the condensate pipe unit comprises a water charging pipe and a water discharging pipe which are distributed diagonally; the condensation inner shell is mounted on the condensation chamber; the condensate pipe unit is mounted on the condensation inner chamber; a flue gas inlet is formed in the bottom surface of the condensation outer shell; a flue gas exhausting passage communicating with the condensation inner chamber is arranged on the bottom of the condensation outer shell; through holes communicating with the condensation chamber and the condensation inner chamber correspondingly are formed in the upper wall surface of the condensation inner shell; the flue gas inlet, the condensation chamber, the through holes, the condensation inner chamber and the flue gas exhausting passage form a flue gas waste heat recycling flow path which is used for heat exchange with the condensate pipe unit, so that the flowing resistance of the flue gas in the condensation inner chamber is equal, the condensate pipe unit is heated uniformly, sensible heat in high-temperature exhausted flue gas of a gas module and latent heat released by condensation of water steam can be fully absorbed, and thus returning water inside the condensate pipe unit can be effectively preheated, the flue gas heat energy recycle rate is increased, the thermal efficiency of the gas module is improved, and the using effect of the product is improved.

The invention relates to a polyacrylamide production line. A reactor prefilter, an oil inlet lubrication polymerization reactor, an oil inlet lubrication smashing and pelleting device and a polyacrylamide colloid drying production line are connected in sequence, and the polyacrylamide colloid drying production line is respectively connected to a screening and grinding device and a pulse dust tail gas treatment device. The polyacrylamide production line is simple in structure, impurities in polyacrylamide production raw materials can be effectively filtered, the discharging time of a reactor is shortened, the amount of polymerization reactions is increased, colloid pelleting can be effectively lubricated, colloidal particles with the grain diameters of about 4 mm are obtained while the molecular weight of polyacrylamide is not reduced, required drying air quantity and energy consumption are reduced, the drying condition and standing time of materials are easily adjusted and controlled, the production capacity and product quality are improved, and the tail gas is effectively dedusted.

The invention provides a warehousing system and an asphalt mixing plant. The warehousing system comprises a stirrer, a receiving hopper, a transportation vehicle and a warehouse body, wherein the receiving hopper is connected with the stirrer and is provided with a discharge channel, and when the stirrer discharges materials, an inlet of the discharge channel communicates with an outlet of the stirrer; the transportation vehicle is movably arranged below the receiving hopper and provided with a feeding port and a discharging port; a receiving port is formed in the warehouse body; the feeding port is in sealed connection with the receiving hopper when the transportation vehicle is used for receiving materials, the transportation vehicle is in sealed connection with the receiving port when used for discharging the materials, and besides, a dust removing port is formed in the receiving hopper and connected to a negative pressure source. According to the warehousing system provided by the invention, sealing can be kept in receiving and discharging processes of the transportation vehicle, smoke and dust are effectively prevented from leakage, besides, the smoke and dust can be discharged through the dust removing port in the receiving hopper timely and collected, so that the amount of smoke and dust emitted to the atmosphere is remarkably reduced, and the warehousing system and an asphalt mixing plant meet the green and environment-friendly production concept.

The invention discloses an impinging stream type ionization high-temperature waste gas harm removal, separation, degradation and circulation treatment device. The device comprises a separation bottom supporting seat, a separation tower supporting frame, a clash type negative pressure separation and degradation tower, an inertia type impinging stream mixing periodic swinging box, an adsorption type electrostatic state dust cleaning and storage box, a multifunctional integrated waste gas degradation water storage box, an ultrasonic waste water circulation purification and harm removal box, an impinging stream waste gas atomization cooling adsorption and degradation mechanism, a circulating cooling waste water ultrasonic purification mixing oil reduction mechanism, an all-dimensional electrostatic adsorption dust storage treatment mechanism, a negative pressure absorption waste gas filtering zero emission mechanism, a spraying covering cooling dust removal cooling mechanism and a temperature difference type power generation heat collection cooling emission mechanism. The invention belongs to the technical field of industrial waste gas treatment, and particularly provides an impinging stream type ionization high-temperature waste gas harm removal, separation, degradation and circulation treatment device which integrates separation and degradation of harmful substances contained in high-temperature waste gas and adsorbs and filters dust in all directions.

The invention discloses a heavy metal ion precipitation and collection tank for landfill leachate, which improves the treatment efficiency of landfill leachate treatment and comprises a tank body, a stirring frame is fixedly mounted on one side of the upper part of the inner side of the tank body, and a stirring motor is fixedly mounted on the stirring frame and in the middle of the tank body. The output end of the stirring motor is connected with a stirring rod extending below the tank body, a plurality of groups of stirring impellers are arranged on the stirring rod, a reciprocating stirring mechanism is further mounted at the bottom of the tank body, the reciprocating stirring mechanism comprises a driving part and a stirring assembly, the stirring assembly is mounted on the driving part, a screening and washing box is installed on the other side of the tank body, a swing structure is arranged between the screening and washing box and the stirring rod, and a jacking mechanism is further installed at the lower end of the screening and washing box. The energy is saved, the purification effect is improved, and the purification efficiency is improved.

The invention discloses a plate-opening coupled type smoke discharging device and belongs to the technical field of tunnel smoke discharge. The plate-opening coupled type smoke discharging device comprises a fixing frame, a power source circuit module, an electromagnetic valve module, a gear bin module and a spoiler. The electromagnetic valve module, the gear bin module and the power source circuit module are fixed inside the fixing frame and form a complete circuit access. The fixing frame is fixed to the upper portion of a smoke discharge opening. The gear bin module is connected with the spoiler through a connection rope. The plate-opening coupled type smoke discharging device can change the smoke discharge gas flow angle according to different smoke coming conditions, optimizes a smokedischarge flow field, effectively reduces the influence of a plug-holing effect on the smoke discharge efficiency and improves the smoke discharge capacity.

The invention provides a water tank, and relates to the technical field of kitchenware. The water tank comprises a tank body without an overfall gap in the side wall and a water discharging device; the water discharging device comprises a water discharging pipe and a water discharging pump, and the water discharging pipe communicates with the water discharging pump; a water discharging opening isformed in the bottom of the tank body; and the water inlet end of the water discharging device communicates with the water discharging opening. According to the water tank, through the arrangement ofthe water discharging pump, the flow rate of a water body in the water discharging device can be increased, the discharging rate of the water body is correspondingly increased, time consumption is reduced, and the use convenience degree of the water tank is improved; in addition, the flow rate of the water body in the water discharging device is increased, and the blocking probability of sundriesin the water body in the water discharging device is reduced; and when the water body flows through the water discharging device, the water discharging pipe and the water discharging pump can be scoured, adherency of the sundries or grease to the water discharging device is further reduced, and the occurrence of the blocking condition of the water discharging device is reduced.

The invention discloses a multi-ventilation-hood control system which comprises a plurality of ventilation hoods, air detection devices in one-to-one correspondence with the ventilation hoods, an air outlet pipe and a control module. The multiple ventilation hoods are installed indoors in a dispersed mode. Local air in the positions where the ventilation hoods are located can be exhausted through the ventilation hoods. In this way, when harmful matter appears in the local air, an air sucking pump in the corresponding ventilation hood can be started, and the local air containing the harmful matter is exhausted to the outside in time through the air outlet pipe, so that diffusion of the harmful matter in the local position is restrained, and the indoor air safety is guaranteed.

The invention relates to the technical field of flue gas dust removal, especially to flue gas dust removal equipment for atmospheric pollution prevention and control. The flue gas dust removal equipment comprises a treatment box, wherein one end of a first reciprocating screw is connected with a third rotating shaft; a fourth bevel gear is connected to the end, located on the outer side of the treatment box, of the third rotating shaft; a first moving block is connected to the first reciprocating screw; a first limiting frame is arranged in and connected with the treatment box; a scraping plate is connected to the upper end of the supporting rod; a filler is arranged in and fixedly connected with the treatment box; the bottom end of the filler makes contact with the upper end of the scraping plate; and through holes are formed in the two sides of the treatment box. According to the invention, an external controller controls a power mechanism to start and then drives the second rotatingshaft to rotate; the first moving block reciprocates in a horizontal direction under limiting of a first limiting frame; the first moving block drives the scraping plate to reciprocate in the horizontal direction through the supporting rod; the reciprocating scraping plate scrapes foam bonded to the lower surface of the filler, so an air inlet gap in the bottom of the filler is not blocked, and asmoke discharging speed is increased.

The present invention discloses an impulse-type grouting apparatus with variable voltage variable frequency. The apparatus comprises a barrel. An upper cover is movably assembled on the barrel in a riveting manner, and an inlet pipe is disposed on the upper cover in a through connection manner. A lower end of one side of the barrel is further communicated with a grouting pipe. Two groups of pressure control valves that are used for limiting flow directions and adjusting pressures are further disposed and connected on the upper cover. Both the two groups of pressure control valves are communicated with inside and outside of the barrel. Further, upper ends of the two groups of pressure control valves are respectively communicated with a suction fan and an air blower. A homogeneous structureused for stirring is further disposed and connected inside the barrel. A valve structure that controls a flow speed through rotation is further disposed inside the grouting pipe, and the valve structure drives operation by using a second motor connected on the grouting pipe. According to the impulse-type grouting apparatus, a driving speed of the second motor can be adjusted to control a sizing agent discharging speed, and the sizing agent discharging speed can also be controlled by starting the suction fan or the air blower. Materials can be discharged under cooperation, and an impulse-type grouting effect can be formed as required.

The invention discloses a novel sewage treatment pool water gate based on silt flow division treatment. The novel sewage treatment pool water gate structurally comprises a flow division opening distribution device and a silt flow division control box, wherein the flow division opening distribution device is provided with a pollution discharging hopper, a pressure triggering mechanism and a flow division control device; and the silt flow division control box is provided with a reset spring, a pressure folding device, a sealing ring and a flow division opening transmission mechanism. The novel sewage treatment pool water gate based on silt flow division treatment has the beneficial effects that the motion of a silt gravity press plate can be controlled through pressure, so that the pressurefolding device is driven to work; a flow division opening baffle plate is pulled to be opened; the silt flow division is realized; the silt discharge speed is accelerated; meanwhile, the blockage probability of a discharging opening by the silt can be reduced; and the sewage treatment effect is enhanced.

The invention relates to the technical field of solid-state garbage treatment, and particularly relates to an environment-friendly and energy-saving rapid cooler and a rapid cooling method for smoke.The environment-friendly and energy-saving rapid cooler comprises a shell body and a plurality of smoke through pipelines arranged in the shell body, wherein a smoke inlet port communicating with oneend of each smoke through pipeline is formed in the shell body, and a smoke outlet port is formed in one end away from the smoke inlet port, of the shell body; a cooling liquid cyclically flowing is held in the shell body; the two ends of each smoke through pipeline are isolated from the cooling liquid separately; and a residue discharge port is formed in the bottom of the shell body, and a sealing element is movably arranged at the residue discharge port. Smoke after incineration treatment enters each smoke through pipeline from the smoke inlet port, carries out heat exchange with the coolingliquid in the shell body, and is cooled to reach 220 DEG C and below and then discharged from the smoke outlet port; and the cooling liquid cyclically flows, a great cooling effect is achieved, and meanwhile, the smoke does not make direct contact with the cooling liquid, the cooling liquid is not polluted, and can be repeatedly used after being cooled, without special treatment, so that higher energy-saving and environment-friendly performance is achieved.

The invention belongs to the field of sponge city construction, and particularly relates to a self-adjusting seepage and drainage well for sponge city construction. The self-adjusting seepage and drainage well comprises a well body arranged underground in a buried mode and a well lid arranged on the well body, wherein a sewage drainage pipe and an underground water seepage pipe communicate with two sides of the well body correspondingly, and the horizontal position of the sewage drainage pipe is higher than that of the underground water seepage pipe; a water dividing plate is connected to theinner side wall of the well body in a sealed and sliding mode, a plurality of drainage holes formed in an annular array are formed in the well lid in a penetrating mode, a transparent daylighting panel is arranged in the center of the well lid in an embedded mode, and an elastic plate is fixed to the bottom of the well lid; and the section of the elastic plate is arranged in a downwards-concave arc shape, and a sealing cavity is formed by the elastic plate and the lower surface of the well lid. According to the self-adjusting seepage and drainage well for sponge city construction, the drainagemode of the seepage and drainage well can be adjusted according to different periods of urban rainfall, so that pollution of sewage to underground water is avoided, the rainwater drainage efficiencyof the seepage and drainage well is guaranteed, and good accumulation, seepage and purification functions are achieved.

The invention relates to a full-wind-pressure gas emission method adopting advanced boreholes for a coal face. The method adopts the advanced boreholes connected to an upper wind roadway and a lower wind roadway of a working face for gas emission and specifically comprises the following steps that an original common gas tail roadway is utilized as a special gas emission roadway for a zone, for original advanced gas drainage boreholes which are not through in a coal body, a haulage roadway for the zone is directly communicated with the special gas emission roadway for the zone, so that the windflow passes through the through boreholes, gas around the boreholes is directly brought to the special gas emission roadway through the entrainment effect, drainage equipment emission is changed intospecial roadway emission, and after the implementation, a coal wall of the working face does not need to carry out shallow hole gas emission work. According to the method, the emission quantity of the gas emission boreholes is selected, so that the gas concentration in the special gas emission roadway can be kept within a reasonable range, and the emission efficiency and the safety degree can begreatly improved; and the gas in the coal wall is directly emitted through a full-wind-pressure wind path, so that the gas emission quantity of the working face is decreased.

The invention discloses waste car crushing equipment facilitating dust removal. The waste car crushing equipment facilitating dust removal comprises a crushing cavity, a driving cavity, a dust collection cavity and a material collection cavity. The driving cavity is arranged on the sidewall of the crushing cavity. The dust collection cavity and the crushing cavity are arranged above the material collection cavity. The material collection cavity is internally provided with a partition board. A precipitation mechanism is arranged on one side of the partition board. The bottom of the material collection cavity is provided with a third discharge port. A residue discharge mechanism is arranged in the third discharge port. The bottom of the material collection cavity is provided with a mud scraping mechanism matched with the precipitation mechanism. Through the structural arrangement, precipitates at the bottom of the material collection cavity can be effectively scraped off so that the precipitates can be discharged from the material collection cavity through a residue discharge mechanism in the third discharge port, the cleaning effect on the bottom of the material collection cavity isenhanced, and the precipitate discharge efficiency is improved.