71results about How to "The process principle is simple" patented technology

The invention relates to a low-pollution closed landscape water body circulating purification system. The system comprises a landscape water body, one end of the landscape water body is connected with a water diversion tube, the water diversion tube is provided with an elevator pump, the other end of the water diversion tube is connected to the front end of a high-load undercurrent constructed wetland system, the rear end of the high-load undercurrent constructed wetland system is connected with a water supply tube, the water supply tube is connected to the other end of the landscape water body, water in the landscape water body goes through the elevator pump and the water diversion tube, enters the high-load undercurrent constructed wetland system and is purified, and purified water goes through the water supply tube and flows back to the landscape water body; and a plurality of ecological floating islands and a photovoltaic fountain are arranged in the landscape water body. The low-pollution closed landscape water body circulating purification system has the advantages of simple process flow, low running cost, excellent comprehensive effectiveness, realization of reduction of pollutants in the water body and "clear water and flowing water" dual water quality keeping function on the premise of promoting flow of the water body by adopting a water power circulating technology as a main technology and comprehensively integrating offline purification and in-situ restoration technologies, simple technologic principle and good effect.

The invention belongs to the technical field of coal mine safety production construction and particularly relates to a coal seam hydraulic pressure jetting breathability-improving system and a construction method thereof. The system comprises a base plate roadway located below a coal seam, and a plurality of drill holes are formed radially in the coal seam direction in the base plate roadway, a plurality of flushing holes and fracturing holes are formed between the drill holes at intervals, each fracturing hole penetrates out of a tunneling strip, and the fracturing holes are formed at interval in a - shape in the tunneling strip extending direction. The fracturing holes are sealed, high-pressure water injection devices are arranged in the fracturing holes, and flushing drill bits are arranged in the flushing holes. Hydraulic punching measures are adopted for a coal seam having undergone hydraulic fracturing, the hydraulic fracturing and hydraulic punching are optimized, the breathability of the coal seam is improved, gas circulation is accelerated, a pre-extraction effect is multiplied, a pre-extraction range is wider, gas is extracted more thoroughly, and an effect is better.

The invention discloses an edge sensor for a segmented mirror surface based on an interference principle, and a working method thereof. The edge sensor is characterized in that: an optical flat or spherical lens is placed on a sub-mirror splicing seam of a measured segmented mirror surface, the front surface of the optical flat or spherical lens is completely anti-reflection, and the rear surfaceof the optical flat or spherical lens is provided with a coating film; a parallel light source is arranged on the other side of a sub-mirror of the measured segmented mirror surface and the optical flat or spherical lens, light rays vertically enter the optical flat or spherical lens by means of a semi-reflecting and semi-transmitting prism and then part of the light beam on the surface returns, the other part is reflected by the surface of the sub-mirror along an original path, the two beams of reflected light form interference fringes, the interference fringes enter a microscopic amplification imaging system by means of the semi-reflecting and semi-transmitting prism, and target surface receiving and digital imaging are carried out by means of a CCD or CMOS detector, namely, the splicingerror of the adjacent sub-mirrors can be handled. The edge sensor prevents starlight and wavefront sensors from occupying and wasting a limited high-imaging-quality field of view of an optical system, is low in price, stable in performance and not affected by environmental factors, and is suitable for detecting the splicing errors between the adjacent sub-mirrors of various optical segmented mirror surfaces.

The invention belongs to the technical field of labor protection product processing and relates to an injection method of rubber film layers on surfaces of cellulosic gloves, which comprises: wearing the cellulosic gloves to be coated on hand mold bodies uniformly, and placing the hand mold bodies with the cellulosic gloves in mold body boxes matched with the mold bodies, wherein 0.1 to 0.5 millimeter hand back cavity type clearance layers are formed between the cellulosic surfaces of the gloves and the corresponding surfaces of the mold body boxes; closing and sealing the mold boxes, fillingup the clearance layers with liquid rubber by an injection machine through an injection hole, cooling the liquid rubber and making the liquid rubber adhere firmly; and opening the mold boxes and taking down the gloves worn on the hand mold bodies, wherein the gloves are formal products for sale. The coating rate of the rubber film layers on the palm sides of the cellulosic gloves is 100 percent, and the coating rate of the rubber film on the hand back sides of the cellulosic gloves is 0 to 100 percent; and the process principle is simple, the processing cost is low, rubber raw material is saved, the quality of the products is high, and the service life of the products is long, the labor protection effect is desirable. Thus, the method can replace the conventional processing method.

The invention discloses a large area silt fluid soil layer foundation pit suspension supporting comprehensive construction structure and method. The large area silt fluid soil layer foundation pit suspension supporting comprehensive construction structure comprises a plurality of retaining piles arranged on the side wall around a to-be-excavated foundation pit; profile steel enclosing purlins arranged on the inner sides of the retaining piles in attaching and surrounding modes, internal pit mixing pile strengthening bodies arranged on the inner side of the to-be-excavated foundation pit, external pit mixing pile strengthening bodies arranged on the outer side of the to-be-excavated foundation pit, anchoring steel driven into a soil layer on the outer side of the to-be-excavated foundationpit, and stay cables connected between the anchoring steel and the profile steel enclosing purlins in a fastened mode; and the retaining piles are composed of pipe piles and Larsen steel sheet piles which is welded and fixed to the two sides of pipe piles in a one-broken-two mode, and the corresponding Larsen steel sheet piles on every adjacent retaining piles are connected in a mutually interlocked mode. According to the large area silt fluid soil layer foundation pit suspension supporting comprehensive construction structure and method, an overall stable silt and fluid soil layer suspensionsupporting comprehensive body can be formed, stability and safety of large area silt fluid soil layer foundation pit supporting are guaranteed, and the positive effect is achieved on surrounding environment protection under the working condition.

,The invention discloses a steel pipe cutting device and method. The steel pipe cutting device comprises a supporting frame used for horizontally erecting a steel pipe in an overhead mode and a rotary cutting frame used for fixing a cutting machine, the rotary cutting frame comprises at least two double-layer frame bodies which are detachably connected the inner rings of the at least two double-layer frame bodies are spliced to form a sleeve opening for rotationally sleeving a steel pipe, the outer rings of the at least two double-layer frame bodies are connected to the outer sides of the inner rings through fixing rods, and one of the outer rings is provided with a fixing base allowing the cutting machine to be installed. The rotary cutting frame is directly arranged on the steel pipe in a sleeving mode to fix the cutting gun, the rotary cutting frame is rotated to cut the steel pipe, and the technical problem that in the prior art, steel pipe cutting is conducted under the complex site working condition and the narrow site is solved. The device is convenient to operate, neat in notch section, high in cutting speed, straight in section, small in size of the rotary cutting frame, convenient to move, suitable for complex environments, low in site requirement and suitable for operation in the complex environments.

The invention relates to the field of walls of frame or pier stud structures of buildings, in particular to a protection device for removing the interior of a building and an application method thereof. The protection device for removing the interior of the building comprises wall bodies (1) vertically fixed on the ground, and is characterized by further comprising supporting frames (2), protection frames (3) and trusses (4), each supporting frame comprises supporting columns (21) and supporting beams (22), each protection frame (3) comprises bottom columns (31), connecting beams (32) and tubular columns (33), and the corners of the supporting frames (2), the corners of the protection frames (3) and the joints of the supporting frames (2) and the protection frames (3) are connected throughthe trusses (4). The application method for the protection device for removing the interior of the building is characterized by comprising the following steps in sequence that (1) the supporting frames are arranged; (2) the protection frames are arranged; and (3) the trusses are arranged. The protection device and the application method thereof have the advantages of being simple in principle, convenient in operation, safe in construction and stable in structure.

The invention relates to deep foundation pit construction, in particular to a precipitation pipe well in a deep foundation pit. According to the method for closing a precipitation pipe well after excavating of a deep foundation pit, a closing well cap and a filter section sealing gland are included; the sealing gland is manufactured by plastic or glass fiber reinforced plastics in a shaped mode, the closing well cap is manufactured according to the diameter of the precipitation pipe well, and the filter section sealing gland is manufactured according to the diameter of the precipitation pipe well and the diameter of a borehole filter section; in the unexcavated state of earthwork, the well cap is buckled on the precipitation pipe well at the moment, and the well cap is provided with a threading pipe, a drainage pipe and a vacuum pipe; the threading pipe is connected with a water pump power source in a precipitation pipe, the drainage pipe is connected with a water pump drainage pipe inside the precipitation pipe well and a drainage pipe outside the well, and the vacuum pipe is connected with a vacuum pump outside the well; and the well cap and the precipitation pipe well are sealedin a plastic film winding mode, and the wound film is automatically adsorbed on the outer wall of the precipitation well and the outer wall of the well cap under the vacuum effect to achieve the sealing effect. According to the method for closing the precipitation pipe well after excavating of the deep foundation pit, the vacuum degree of the precipitation pipe well can be ensured, mounting and demounting are convenient, and the cost is saved.

The invention discloses an edge sensor for a segmented mirror surface based on an interference principle, and a working method thereof. The edge sensor is characterized in that: an optical flat or spherical lens is placed on a sub-mirror splicing seam of a measured segmented mirror surface, the front surface of the optical flat or spherical lens is completely anti-reflection, and the rear surfaceof the optical flat or spherical lens is provided with a coating film; a parallel light source is arranged on the other side of a sub-mirror of the measured segmented mirror surface and the optical flat or spherical lens, light rays vertically enter the optical flat or spherical lens by means of a semi-reflecting and semi-transmitting prism and then part of the light beam on the surface returns, the other part is reflected by the surface of the sub-mirror along an original path, the two beams of reflected light form interference fringes, the interference fringes enter a microscopic amplification imaging system by means of the semi-reflecting and semi-transmitting prism, and target surface receiving and digital imaging are carried out by means of a CCD or CMOS detector, namely, the splicingerror of the adjacent sub-mirrors can be handled. The edge sensor prevents starlight and wavefront sensors from occupying and wasting a limited high-imaging-quality field of view of an optical system, is low in price, stable in performance and not affected by environmental factors, and is suitable for detecting the splicing errors between the adjacent sub-mirrors of various optical segmented mirror surfaces.

The invention relates to a pile position and an underground structure mark. An underground pile position marking tool on an engineering site, the marking tool includes a steel pipe with one end closed: a guide rod inserted from the closed end of the steel pipe with a piston, a marking material tank, which is passed into the steel pipe through a branch pipe, The outlet of the branch pipe is located at the lowest position of the piston. Use sloped steel pipes to take soil from the location to be marked underground and drill holes. After drilling, pour lime or other powdery substances into the marked material tank of the marked position marking tool. The color of the poured material should have obvious color difference from the soil of the project site. Then put the conduit of the tool into the marked hole, hold the handle with one hand, and push the bracelet up and down with the other hand, so that the powder or lime in the lime tank will be sent into the marked hole, when you find the pile position after marking Use a shovel to gently scrape off a layer of the soil surface, and the pile holes will be clearly displayed. The invention prevents pile position marks from being damaged, and prevents field marking piles from causing damage to vehicle tires.

The invention relates to tube well construction, in particular to precipitation plastic tube well construction. A method for removing a UPVC double-wall corrugated precipitation tube well comprises the steps: first four hanging bars are evenly arranged on the outer side of the UPVC double-wall corrugated precipitation tube well; the hanging bars are made of steel bars and externally wrapped with a plastic film, a cutting knife with a hook is welded to the bottom of each hanging bar, the inner side of the bottom of the hook of the cutting knife is provided with a blade, and the top of each hanging bar is provided with a hanging ring; the edge part of the cutting knife is embedded upwards into a tube well bottom cover, and a cutting edge of the cutting knife is placed at the bottommost part of the UPVC double-wall corrugated precipitation tube well; precipitation operation is performed; finally, after the precipitation operation is finished and drainage facilities in the tube well are recycled, a lifting appliance is used to pull upwards the hanging ring located on a tube well upper opening, a mode of multiple lifting or single lifting is adopted, the goal of cis-cutting is achieved, a UPVC double-wall bellows well tube divided into four pieces after the cutting is separated from a well opening and taken out manually. The method is simple and easy to operate, and environmental pollution is reduced.

The invention discloses a high degree of polymerization ammonium polyphosphate and a preparation method thereof. The method of the invention is to use ammonium polyphosphate with low degree of polymerization as raw material, and synthesize ammonium polyphosphate with high degree of polymerization through shock wave and high pressure. The method of the present invention uses cheap ammonium polyphosphate with a low degree of polymerization on the current market as raw material, which saves the process link for the preparation of ammonium polyphosphate with a low degree of polymerization in the early stage. The high-polymerization ammonium polyphosphate has high product value, and at the same time, the process principle of the method is simple and the process is simple, so it has a good market prospect.