486 results about "Settling chamber" patented technology

The invention provides a negative pressure suction dust removal device based on a Venturi effect, and belongs to the field of coal mine dust removal. The problems that an existing dust removal device suitable for the field of coal mine dust removal is too large in size and mass, difficult to move, large in noise, high in daily maintenance cost and the like are solved. The device comprises a box body, a water power fan, a Venturi tube, a desilting assembly, a counter-rotating fan, a filtering cabin and a water tank, wherein an air inlet pipeline, a settling cavity, an air duct and an air outlet pipeline are sequentially arranged in the box body; the hydrodynamic fan is arranged at the inlet end of the air inlet pipeline; the input end of the Venturi tube is communicated with the air inlet pipeline, and the output end is communicated with the settling cavity; the desilting assembly is arranged below the air duct; the counter-rotating fan is arranged in the air duct and is positioned between the settling cavity and the filtering cabin, and the filtering cabin is communicated with the air outlet pipeline; and the water tank is communicated with the filtering cabin and is also communicated with a water inlet of the hydrodynamic fan. The dust removal device is simple in structure, small in size and mass, convenient to move, low in noise and low in daily maintenance cost.

The utility model relates to the field of paste resin production machinery, in particular to a paste resin packaging dust remover which comprises a dust removal box, a filtering cavity and a settling cavity are formed in the dust removal box, the filtering cavity is communicated with the settling cavity through a through hole, a filtering bag with an opening facing the filtering cavity is arranged in the through hole, and two sliding rods are vertically and fixedly arranged in the filtering cavity. The two sliding rods are slidably connected with the same cross rod, the outer sides of the two sliding rods are sleeved with supporting springs, and the two ends of the supporting springs are connected with the bottom side of the filtering cavity and the bottom side of the cross rod correspondingly; two magnets are arranged on the inner wall of the top of the filter cavity, a magnetic block magnetically attracted by the magnets is arranged at the top of the cross rod, and a beating rod movably arranged in the filter bag is arranged on the bottom side of the cross rod; a suction fan is arranged on the outer side of the top of the dust removal box through an exhaust channel, a dust collection channel is formed in the bottom end of the dust removal box, a sliding rod, a cross rod, a magnet, a magnetic block and a beating rod are arranged to be used in cooperation, the beating rod beats the bottom of a filter bag to make the filter bag oscillate, and then dust on the filter bag is cleared away.

The invention provides a steelmaking electric arc furnace and a steelmaking method thereof.The steelmaking electric arc furnace comprises an electric arc furnace body and a horizontal waste steel conveying and preheating device, and the electric arc furnace body is arranged at an outlet of the horizontal waste steel conveying and preheating device and used for receiving waste steel from the horizontal waste steel conveying and preheating device; the received scrap steel is smelted to obtain molten steel and slag; the horizontal waste steel conveying and preheating device is used for preheating the waste steel received from the waste steel feeding device and conveying the preheated waste steel to the electric arc furnace body; the horizontal steel scrap conveying and preheating device comprises a steel scrap conveying device, a horizontal connecting trolley, a horizontal connecting trolley smoke hood, a steel scrap preheating channel smoke hood, a dynamic sealing device, a gas collecting header pipe, a primary flue and a settling chamber. By means of the technical scheme, the double effects of reducing smelting energy consumption and improving the production rate can be achieved.

The invention relates to a gas recovery downhole axis jet reinforced oil-gas-water three-phase separation device which comprises a degassing structure and an oil-water separation structure, the oil-water separation structure is arranged in the middle in the axial direction, the degassing structure surrounds the oil-water separation structure, and gas-containing mixed liquid firstly enters the degassing structure to be degassed and then enters the oil-water separation structure; the degassed oil-water mixed liquid enters an oil-water separation structure for oil-water separation; the degassing structure comprises a shell formed by sequentially connecting an upper sleeve, a bridge type channel, a middle sleeve, a connector and a lower sleeve, a gas chamber is arranged in the middle sleeve, the gas chamber is in threaded connection with a connector of a gas separation cavity, the gas separation cavity is located in a three-phase mixing cavity, and the three-phase mixing cavity is connected with a settling bin; an ascending channel is arranged on the inner wall of the lower sleeve, the ascending channel, the three-phase mixing cavity, the gas separation cavity, the gas chamber and the middle sleeve are sequentially communicated, the middle sleeve is communicated with the upper sleeve through a bridge type channel, and the upper sleeve is provided with a gas outlet. According to the invention, oil-water separation is carried out after gas phase separation, so that the service life of equipment is prolonged, and the exploitation cost is reduced.

The utility model relates to the technical field of sedimentation tank sludge treatment, and discloses a sewage sedimentation tank sludge treatment device which comprises a sewage sedimentation tank main body, a sedimentation chamber is arranged in the sewage sedimentation tank main body, and an arc-shaped plate is fixedly arranged on the inner wall of the sedimentation chamber. An arc-shaped plate is arranged on the inner wall of the bottom side of the settling chamber, two slope side plates are fixedly arranged between the arc-shaped plate and the inner wall of the bottom side of the settling chamber, a rotating groove is formed among the arc-shaped plate, the two slope side plates and the settling chamber, a sludge collecting barrel is rotationally arranged in the rotating groove, and a rotation driving mechanism for the sludge collecting barrel is arranged on one side of the sewage settling tank main body. Sewage and sludge flowing into the sludge collecting cylinder are synchronously conveyed to the corresponding discharge ports in the sludge collecting cylinder from the two ends through the sludge discharge driving mechanism, and then the sludge is discharged out of the sewage sedimentation tank main body through the discharge pipe, so that the sludge in the sewage sedimentation tank main body is treated; the sludge treatment working efficiency of the sewage sedimentation tank main body is improved.

The utility model belongs to the technical field of wet-type electrostatic dust collector wastewater treatment, and particularly relates to a wet-type electrostatic dust collector wastewater treatment device which comprises a box body, a settling chamber, a flocculation chamber and a purification chamber are respectively formed in the box body, a floating plate is mounted on the side wall of a sliding block, a connecting rope is mounted on the bottom side of the floating plate, and a water outlet is formed in the bottom side of the connecting rope. A gravity ball is mounted on the connecting rope, a laser diode and a laser receiver are mounted on a top plate of the flocculation chamber, a flocculating agent is mounted in the flocculation box, an electromagnetic valve is mounted on the guide pipe, a laser beam is sent downwards through the laser diode, and the laser beam is reflected when encountering the floating plate and is received by the laser receiver; the laser receiver sends an analysis result to the control panel, the control panel obtains the height of the wastewater liquid level and controls the electromagnetic valve to be opened, the different heights of the wastewater liquid level enable the opening time of the electromagnetic valve to be different, accurate control over the adding amount of the flocculating agent is achieved, and the adding accuracy of the flocculating agent is improved.

The invention relates to the technical field of sewage treatment, in particular to a wastewater solid-liquid separation structure and a separation method thereof. The processing device comprises a sewage tank and a liquid supply device, the interior of the sewage tank is divided into a liquid supply bin, a heating bin, a separation bin and a standing bin by an inner partition plate and an outer partition plate which are arranged in the sewage tank, and a liquid collection mechanism is arranged at the top of the heating bin and comprises a gas transmission part and a temperature sensing part. Cool air conveyed in a cooling capacity box is used for achieving separation of solidified grease and sewage, a boundary plate is promoted to guide grease discharged by a heating bin into a discharging channel, the moving path of the grease is changed, meanwhile, the cold air provides cooling capacity for hot air in a liquid storage box, and a memory spring is forced by condensed liquid to push a push plate to move; and the push plate pushes the solidified grease to the far end to isolate the solidified grease and receive the grease from the discharging channel, so that the solidified grease is prevented from hindering newly injected grease, and the grease treatment efficiency is improved.

The utility model relates to the technical field of fresh air settling treatment, in particular to a fresh air settling chamber for a clean room, which comprises a settling chamber main body, a partition plate is arranged in the settling chamber main body, a collecting structure is arranged on one side of the partition plate, and side plates are mounted on two sides of the inner wall of the settling chamber main body; through the collecting structure, when air is treated, air in the clean room is introduced into the air inlet pipe, at the moment, after the air is pretreated through the air inlet structure, the air enters the space between the side plates on the two sides, large dust particles in the air fall down under the influence of the gravity of the dust particles and are stuck and fixed by the sticking belt below, and dust is prevented from being blown by wind to fly around; when the adhesive tape on one side is fully paved with dust particles, the output shaft of the adhesive tape can drive the rotating rod to rotate through driving of the servo motor, so that one side of the collecting roller is replaced, and when the adhesive tapes on the four sides are fully paved with dust, the cover plate is taken down, and the adhesive tapes are torn down one by one and replaced. Therefore, the purposes of collecting dust and preventing dust particles from returning to the air chamber are achieved.

The utility model belongs to the technical field of chlorination process titanium dioxide production, and relates to a chlorination furnace gas inlet buffer device which comprises a gas buffer tank, the gas buffer tank is connected in series between an outlet of an oxidation section chlorine gas return pipeline and an inlet of a chlorination furnace gas inlet pipeline, the gas buffer tank comprises a tank body, and a partition plate is arranged in the middle of the inner top wall of the tank body. The front end and the rear end of the partition plate are fixedly connected with the inner walls of the front side and the rear side of the tank body respectively, an airflow channel is reserved between the partition plate and the inner bottom wall of the tank body, the partition plate divides an inner cavity of the tank body into a settling cavity and an air outlet cavity, an air inlet is formed in the top of the settling cavity, and an air outlet and a pressure gauge are arranged at the top of the air outlet cavity. And a cleaning door is arranged outside the cleaning hole. The device is simple in structure, convenient to operate and capable of effectively preventing titanium dioxide entrained in the returned chlorine pipeline from blocking the air inlet hole of the chlorination furnace, so that the operation stability of the chlorination furnace and the output of the system are ensured, and the processing quality of products is improved.

The utility model discloses a waste heat recovery device of a straw steam explosion wall, and relates to the technical field of waste heat recovery of the steam explosion wall, the waste heat recovery device of the straw steam explosion wall comprises a steam explosion tank and a material receiving device, the discharge port of the steam explosion tank is communicated with the feed port of the material receiving device, and the discharge port of the steam explosion tank is communicated with the feed port of the material receiving device. A steam outlet of the material receiving device is communicated with the settling chamber through a first pipeline, and a steam outlet of the settling chamber is communicated with the heat exchanger through a second pipeline. Straw in steam can be removed through the settling chamber, then the steam is cooled through the heat exchanger, cooled gas is discharged into the air, heat, lost in the heat exchanger, of the steam can be absorbed and applied by another heat exchange medium in the heat exchanger, and therefore waste heat recovery of the steam explosion wall of the straw is achieved.

The utility model is suitable for the technical field of pollution control, and provides a clean pollution control device which comprises a settling chamber and a purifying chamber, the purifying chamber is located at the top of the settling chamber, a water inlet pipe is connected to the upper portion of the left side of the settling chamber, a feeding pipe and a water outlet pipe are connected to the left side and the right side of the purifying chamber respectively, and a water outlet cylinder is installed at the top of the settling chamber and extends into the purifying chamber. According to the clean pollution control device, the settling chamber is arranged, silt filtered out by the filter plate falls into the settling chamber under the action of gravity, the motor can be started to open the cover plate, at the moment, the silt flows out of the bottom of the settling chamber, manual cleaning is not needed, and the clean pollution control device has the advantages of being convenient to use and capable of saving labor. By arranging the plug, water inlet of the water inlet pipe does not need to be stopped when silt is cleaned, so that the water treatment progress is not delayed, and by arranging the clamping block and the bolt, the filter plate can be more convenient to disassemble and assemble.

The present invention relates to the technical field of rotary kiln flue gas treatment and heat recovery, and more specifically, to a rotary kiln flue gas purification and waste heat recovery device and method, comprising a purification and heat transfer device, the purification and heat transfer device comprising a device body, a primary heat transfer element disposed within the device body, an air inlet chamber disposed in the middle of the primary heat transfer element, the air inlet chamber having an inverted conical chamber structure; an air inlet port disposed at the upper end of the air inlet chamber, a first settling chamber disposed at the lower end thereof, a first sealing plug removably disposed at the lower end of the first settling chamber; a first spiral fluid chamber disposed within the primary heat transfer element, a plurality of first vents disposed between two adjacent spiral chambers; the first spiral fluid chamber having a first fluid inlet and a first fluid outlet. The invention utilizes a method of directly mixing high-speed circulating fluid and cold fluid to enhance heat transfer efficiency. The invention can significantly enhance solid waste settling efficiency, improve purification efficiency, and achieve high waste heat recovery efficiency.

The utility model relates to a waste heat boiler and a converter gas waste heat recovery system equipped with the waste heat boiler, the waste heat boiler comprises a first return stroke boiler, a second return stroke boiler and a settling chamber, the top of the first return stroke boiler is provided with a flue gas inlet, and the top of the second return stroke boiler is provided with a flue gas outlet. A bottom smoke outlet of the first return stroke boiler and a bottom smoke inlet of the second return stroke boiler are both communicated with an inner cavity of the settling chamber, and a longitudinal scouring heating surface is arranged in the first return stroke boiler. The waste heat boiler adopts a double-return-stroke structural design, so that the waste heat recovery effect can be ensured; a longitudinal scouring heating surface and a smoke longitudinal scouring heating surface are arranged in the first return stroke boiler, so that the smoke waste heat is recycled, the ash deposition degree can be effectively relieved, and the ash deposition condition is reduced; and the settling chamber can play a role in inertial dust removal, so that the probability of ash deposition and ash blockage of the waste heat boiler is further reduced.

The utility model discloses a sludge treatment device, which belongs to the technical field of sludge treatment and comprises an impurity screening part, a gravel screening part, a bottom mud screening part and a mud-water separation part, the sundry screening part comprises a feeding hopper and a sundry intercepting mechanism, and the sundry intercepting mechanism comprises a screening grid and a sundry conveying mechanism; the gravel screening part comprises a gravel settling chamber, the gravel settling chamber comprises a muddy water area and a gravel area, the muddy water area is communicated with the feeding hopper, a muddy water extraction mechanism is arranged in the muddy water area, and a gravel delivery mechanism is arranged in the gravel area; the gravel screening part comprises a bottom mud settling chamber, the bottom mud settling chamber comprises a settling area and a drainage area, a water distributor and an inclined tube matrix are arranged in the settling area, a bottom mud conveying mechanism is arranged in the settling area, and an overflow port is formed in the drainage area; the mud-water separation part comprises a mud inlet, a mud outlet and a water outlet, and the water outlet is communicated with the water drainage area. Impurities and sand grains in sludge can be screened out, sludge-water separation is carried out on the sludge, the water content and the sand content of discharged sludge are reduced, and the fine silt content in discharged water is reduced.

The air uniformizing device comprises an air uniformizing barrel, a spiral air duct is arranged in the air uniformizing barrel, air inlets are symmetrically formed in the two ends, located in the center of the inner side, of the spiral air duct, and the air inlets are provided with air outlets which are obliquely upward and located at the ends, located on the outer side, of the air inlets. The grain cleaning machine comprises a winnowing settling chamber, a dust removal device, a fan, a motor and the air uniformizing device, a grain inlet is formed in one side of the winnowing settling chamber, an air inlet communicated with the air outlet of the air uniformizing device is formed below the grain inlet, and a grain outlet is formed in the bottom of the winnowing settling chamber; an air collecting box is arranged at the top of the dust removal device and communicated with an air inlet of a fan, an air distributing pipe is arranged at an air outlet of the fan, and two branch air pipes of the air distributing pipe are communicated with an air inlet pipe of the air uniformizing device through main air pipes respectively. The speed of air exhausted from the air outlet of the air uniformizing device is uniformly distributed, the grain cleaning machine exhausts part of air through the air distributing pipe, a small amount of air is supplemented and sucked through the air suction opening, air quantity balance and airflow internal circulation in the winnowing system are achieved, and equipment operation energy consumption is reduced.

The invention relates to the technical field of flue gas treatment, and provides a high-temperature flue gas treatment system which comprises a kiln, a settling chamber, a dust falling tank, a spray tower and a fan which are sequentially communicated through pipelines, and the dust falling tank is provided with a suction opening communicated with the outside; and the suction opening keeps negative pressure under the action of the fan and is used for extracting smoke escaping from the kiln. According to the system, the risk that smoke and dust carried by the smoke escape to the working environment can be reduced to the maximum extent, and the situation that the smoke and the dust carried by the smoke escape to pollute the working environment is avoided.

The utility model relates to a softened water preparation device, in particular to a softened water preparation device with high hardness removal rate. The utility model relates to a softened water preparation device with high hardness removal rate, which comprises a water inlet pipe, a reaction chamber I, a settling chamber I, a settling chamber II, a reaction chamber II, a settling chamber III, a settling chamber IV, an immersed UF reaction tank, an adjusting chamber, an ion exchange chamber and a water outlet pipe which are sequentially arranged, a sodium carbonate solution adding opening is formed between the settling chamber II and the reaction chamber II.

The utility model belongs to the technical field of waste heat boilers, and particularly relates to a waste heat boiler blow-off recovery device which comprises a waste heat boiler, a water inlet is formed in one side of the waste heat boiler, a water outlet is formed in the side, away from the water inlet, of the waste heat boiler, a recovery box is arranged on the side face of the waste heat boiler, and a circulating pump is arranged on the side, close to the water inlet, of the recovery box. And a circulating pipe is communicated between the output end of the circulating pump and the water inlet. When the inner side of the waste heat boiler is circularly flushed, incrustation can be continuously flushed out along with the cleaning agent, obvious incrustation particles can be filtered and recycled through the recycling barrel after entering the recycling barrel, small incrustation particles can enter the settling chamber to be settled and recycled, and then the cleaning agent flows back into the circulating chamber in an overflowing mode. By means of the technical scheme, water scale can be continuously cleaned and recycled during circulating flushing, it is avoided that too much water scale is doped in a cleaning agent, a circulating pump is blocked, and in addition, the follow-up cleaning effect of the cleaning agent on the boiler is prevented from being affected.

The present invention belongs to the technical field of building water supply and drainage, and discloses an energy-saving building water supply and drainage device and a working method thereof, including a sewage tank, a sewage pipe 1 and a sewage pipe 2, a drainage hole is opened on the right side of the top of the sewage tank, a cover plate is pressed and installed on the top of the sewage tank, a water inlet pipe, a feeding pipe and a drainage pipe are fixedly installed on the top of the cover plate, a partition is slidably installed in the inner cavity of the sewage tank, and the interior of the sewage tank is divided into a sedimentation chamber and a precipitation chamber by the partition, and a sealing cylinder is fixedly installed in the sedimentation chamber. This device reduces the liquid level of sewage in the inner cavity of the sedimentation chamber in disguised form, and at the same time, the partition moves to the right to the right side of the overflow hole 1, and the overflow pipe 2 performs the overflow function. This design synchronously changes the volume of the sedimentation chamber by matching the partition-induced sewage pressure and the elastic potential energy of the spring 2, and realizes the maximum efficient sewage treatment volume of the sedimentation chamber per unit time.

The utility model provides a flue gas carbon dioxide trapping device which solves the problems that a flue gas carbon dioxide trapping device is complex, high in energy consumption and low in concentration of trapped carbon dioxide. The device comprises a dust settling chamber, an absorption regeneration tower, a liquid storage tank and a CO2 storage tank, a flue gas inlet and a flue gas outlet are formed in the dust settling chamber; a plurality of absorption units are arranged in the absorption regeneration tower from bottom to top, and each absorption unit comprises a filler assembly and a spraying assembly from bottom to top; the filler assembly is filled with a solid adsorbent and is provided with a heating assembly, and the spraying assembly sprays water into the filler assembly; a liquid outlet, a gas outlet and an absorption gas inlet are formed in the absorption regeneration tower; the flue gas outlet is communicated with the absorption gas inlet; the gas outlet is communicated with the CO2 storage tank and the atmosphere at the same time; a water inlet, a reflux inlet and a water outlet are formed in the liquid storage tank; the liquid outlet is communicated with the reflux inlet, and the water outlet is communicated with the spraying assembly.

The invention discloses an energy storage type vertical fluidized bed fluidized bed furnace which comprises a combustion chamber, a dust remover and a settling chamber independently arranged between the combustion chamber and the dust remover. An inlet and an outlet are symmetrically formed in the two sides of the settling chamber, a smoke pipeline is arranged at the top of the combustion chamber and communicated with the inlet, the dust remover is provided with a cyclone pipeline, the cyclone pipeline is communicated with the outlet, and the sectional area of the outlet is larger than that of the inlet; a partition plate extending downwards from the inner wall of the top of the settling chamber enables the inner space of the settling chamber to form a U-shaped flow channel, the U-shaped flow channel comprises a first flow channel, a bottom flow channel and a second flow channel, and an inverted-cone-shaped inner cavity is formed below the bottom flow channel. According to the invention, secondary combustion of unburnt particles before entering the dust remover is realized, the combustible content in the flue gas is obviously reduced, the carbon deposition risk of subsequent dust removal equipment is reduced, the temperature of the flue gas entering the dust remover is reduced, and the service life of the equipment is prolonged.

The device comprises a reaction chamber and a settling chamber, the middle of the settling chamber is communicated with an output port of the reaction chamber, a liquid discharge port is formed in the top of the settling chamber, and a slag discharge port is formed in the bottom of the settling chamber; a filter membrane is also arranged in the settling chamber, the liquid outlet is positioned on one side of the filter membrane, and the slag outlet and the output port of the reaction chamber are positioned on the other side of the filter membrane. By arranging the filter membrane, clear water can be separated from sediments, and the sediments are respectively discharged through the liquid outlet and the slag outlet, so that the situation that the sediments are carried and water disturbance is aggravated when the clear water is discharged is reduced, the sediments can settle to the seabed more quickly in a smaller range, and pollution and damage to the surrounding marine environment are reduced. The method comprises the following steps: adjusting the orientation and opening degree of a liquid outlet according to ocean current information, and flushing ocean current with clear water to slow down the speed of water flow near a slag outlet so as to reduce drifting of precipitates.

The utility model discloses explosive dust washing treatment equipment which comprises a Venturi tube, a settling chamber, a rotational flow plate tower, a water washing tower and a fan which are sequentially communicated, the settling chamber, the rotational flow plate tower and the water washing tower are all provided with mud buckets, and all the mud buckets are jointly communicated with an inclined tube settling pond. A Venturi tube, a settling chamber, a rotational flow plate tower, a water washing tower and a fan are sequentially arranged in a communicated mode, the settling chamber, the rotational flow plate tower and the water washing tower are each provided with a mud bucket, and all the mud buckets are jointly connected with an inclined tube settling pond; by arranging a multi-stage dust removal process, the dust removal efficiency is effectively improved; in addition, the inclined tube sedimentation tank can also realize cyclic utilization of wastewater.

The settling chamber structure comprises a machine shell, an air inlet and an air outlet are formed in the machine shell, a plurality of baffles are arranged in the machine shell side by side, a dust blocking channel is formed between every two adjacent baffles, the air inlet is communicated with the air inlet end of the dust blocking channel, and the air outlet is communicated with the air outlet end of the dust blocking channel. Dust-containing waste gas enters the machine shell from the air inlet, due to the fact that the ventilation area is suddenly and greatly increased, the overall air speed is rapidly reduced, and the air flows vertically upwards to pass through the dust blocking channel, large-particle dust cannot overcome the action of gravity, falls downwards and is deposited at the bottom of the settling chamber. Besides, part of large-particle dust enters the dust blocking channel, but is blocked at the bent part of the dust blocking channel, and then is deposited at the bottom of the settling chamber under the action of gravity. According to the utility model, the baffle plates which are vertically arranged are used for stopping large-particle dust, so that the size of the shell in the transverse direction is controlled, and the occupied area of the settling chamber is reduced.

The multistage dust removal equipment comprises a bag-type dust remover, a settling chamber structure is fixedly installed on the lower portion of the outer surface of the front end of the bag-type dust remover, and the settling chamber structure comprises a settling box, an air outlet pipe, a water inlet valve, an air inlet pipe, a blow-down valve, a water guide pipe, a water spraying head, a first baffle, a second baffle and a baffle plate. The settling box is fixedly mounted at the lower part of the outer surface of the front end of the bag-type dust collector. According to the multistage dust removal equipment for the kiln, the settling chamber structure is arranged, large particles can settle down in the settling box, the waste gas treatment burden of the bag-type dust remover is reduced, after settling in the settling box, the large particles can be conveniently cleaned in a water washing mode, and the dust removal efficiency is improved. And the cleaning difficulty is reduced.

The utility model discloses a device for treating DDNP (dinitrodiazophenol) wastewater by a combined process. The device comprises a screening filter, a regulating tank, a sedimentation tank, an oxidation tank and an electrolytic tank, the screening filter is used for filtering the entering DDNP wastewater; the regulating tank is connected with the screening filter tank, and is used for regulating the pH of the DDNP wastewater subjected to filtration treatment to be acidic; the sedimentation tank is connected with the regulating tank, is used for carrying out sedimentation treatment on the DDNP subjected to acid regulation treatment and removing visible suspended matters in a water body, and comprises a sedimentation chamber, a dosing tank which is connected with the sedimentation chamber and is used for adding a water purifying agent into the sedimentation chamber, a filter screen arranged in the sedimentation chamber and a stirring part which is connected with the filter screen and extends downwards; the oxidation pond is connected with the settling chamber and is used for converting and decomposing part of soluble organic matters in the entering supernate into inorganic matters; the electrolytic tank is connected with the oxidation tank and is used for carrying out electrolytic reaction on the entering DDNP wastewater; through the composition of the limiting device, the DDNP wastewater is deeply treated, so that high-chroma and a large number of toxic organic matters in the DDNP wastewater can be deeply removed, and the effluent meeting the emission standard requirement is obtained.

The utility model discloses a novel winnowing machine, which relates to the technical field of winnowing equipment and comprises a machine frame, a feeding conveying mechanism, a separation drum separation chamber and a settling chamber which are arranged on the machine frame along the material flowing direction, a fan system is arranged on the machine frame, a separation drum is rotatably arranged in the separation drum separation chamber, and the settling chamber is arranged on the machine frame. The bottom of the separation drum separation chamber is provided with a heavy material discharge port corresponding to one side of the separation drum far away from the settling chamber, and the bottom of the settling chamber is provided with a light material conveyor; the fan system comprises a centrifugal fan, the fan is connected with an air supply pipeline and a dust removal pipeline, an air outlet of the air supply pipeline extends into the separation drum separation chamber, an air return channel is arranged at the top of the settling chamber, and the air return channel is connected with the centrifugal fan through an air return pipe; according to the scheme, through reasonable structural design and an efficient separation mechanism, effective separation of heavy substances and light substances in materials is achieved, meanwhile, a dust removal pipeline is arranged, and the environmental protection performance and the energy efficiency level of the dust removal device are remarkably improved.

The invention relates to the technical field of shale gas exploitation, in particular to a multifunctional system for water removal, sand removal and cooling of shale gas. According to the technical scheme, the device comprises a baffle separation device, a flow collection bin, a water removal bin, a sand setting chamber and a water storage bin; a sand discharging bin and a sand removing bin are arranged in the baffle separation device, a movable bin door is arranged between the sand discharging bin and the sand removing bin, the sand discharging bin is connected with the flow collecting bin through a first exhaust pipe, and the sand discharging bin is connected with the sand settling chamber through a first drainage pipe; one side of the collecting bin is connected with the water removal bin through a second exhaust pipe, and the bottom of the collecting bin is communicated with the sand setting chamber through a second drainage pipe; a molecular sieve is arranged at the top of the dewatering bin which is connected with the sand setting chamber through a second air inlet pipe. Water removal, sand removal and cooling treatment of the shale gas can be efficiently achieved at the same time, the situation that only one problem can be solved in the past is changed, and the shale gas treatment efficiency and quality are greatly improved.

The utility model relates to the field of heat absorbers of electric furnace settling chambers, and discloses a fused salt radiation type heat absorber of an electric furnace waste heat boiler settling chamber, which comprises a heat absorber body, the heat absorber body comprises a plurality of groups of radiation type heating surfaces, the radiation type heating surfaces are arranged along the inner wall of the settling chamber, and the inner sides of the radiation type heating surfaces define a cavity; and the fused salt circulates in the radiation type heating surface and absorbs heat in the high-temperature flue gas entering the settling chamber. The system has the advantages that waste heat in high-temperature flue gas can be fully utilized, energy is further saved, consumption is further reduced, the efficiency of the saturated steam generator set is improved, stability is good, and economic benefits are high.

The invention relates to the technical field of grain conveying, in particular to a breakage-proof grain feeding device based on pneumatic conveying and a rice husking machine. The breakage-proof grain feeding device comprises a support, a conveying pipe and a settling chamber, and the conveying pipe and the settling chamber are fixed to the support and communicate with each other; the air conveying assembly is arranged on the support and used for conveying the grains in the conveying pipe into the settling chamber; the convection separation assembly is arranged on the settling chamber, and the convection separation assembly can provide opposite airflow so as to separate the grains entering the settling chamber; the gravity discharging mechanism is arranged in the settling chamber, partition plates which are symmetrically arranged are connected to the gravity discharging mechanism, and when the air conveying assembly conveys grains in the conveying pipe to the settling chamber, the convection separation assembly can provide opposite air force, so that the impact force of the grains is counteracted, and the grains cannot directly impact the inner wall of the settling chamber; and the integrity of the grains is ensured.