6results about How to "Stop the collapse" patented technology

The invention discloses a leaking stoppage method and structure for a leaking hole of a foundation pit support structure in a soft soil area. The method comprises the steps that the leaking hole of the foundation pit support structure is cleaned; a plugging plate is installed at the leakage hole to construct a first plugging structure for the leakage hole, and the leakage hole is sealed and plugged through the first plugging structure; quick-setting cement slurry is injected into the leakage hole through the first channel sealing structure to construct a second channel sealing structure for the leakage hole, and the leakage hole is internally filled and plugged on the inner side of the foundation pit through the second channel sealing structure; soil is backfilled in the foundation pit on the side where the leakage holes are located; punching and grouting outside the pit to construct a third blocking structure for the leakage hole, and performing external filling and leaking stoppage on the leakage hole through the third blocking structure; and backfill soil in the foundation pit is removed. The method has the advantages of being simple in leaking stoppage process, convenient to construct, high in leaking stoppage speed, short in leaking stoppage period and good in leaking stoppage effect.

The invention belongs to the technical field of coal bed gasification drilling and completion, and discloses a plug cone type fusible tube and a machining method.The plug cone type fusible tube comprises a supporting tube and a combustible plug cone, and a plurality of mounting holes are formed in the supporting tube; the combustible plug cones are inserted into the mounting holes in a one-to-one correspondence mode and fixedly connected with the supporting pipe, and the combustible plug cones are made of fusible alloy or fusible nonmetal. According to the plug cone type fusible tube, a coal seam can be effectively ignited after the combustible plug cone is combusted at high temperature, meanwhile, the supporting tube can prevent the coal seam from collapsing, it is guaranteed that an igniter safely withdraws, it is guaranteed that a gas channel is smooth after combustion, and the manufacturing cost is low.

A kind of fireproof and flame-resistant moxa stick, including moxa shell, moxa cover, moxa column, heat insulation plate with heat conduction hole, the positioning sleeve that can be attached to skin, moxa column has N, N moxa column is evenly distributed on the top bottom surface of moxa cover, the inner wall of the moxa cover is provided with the support cylinder made of metal mesh, the inner wall of the moxa shell is also provided with the support structure made of metal mesh, the top of the support structure and the bottom of support cylinder are mutually top touch.The utility model has the advantages of: moxa column has multiple, can set up different types of moxa column, realize the moxa column of different effects of simultaneous moxa simultaneously igniting, moxa efficiency is high;Although setting multiple moxa column temperature is higher, the inner wall of the moxa cover is provided with the support cylinder made of metal mesh, the inner wall of the moxa shell is also provided with the support structure made of metal mesh, so that moxa flame even burns to the paper structure outside metal mesh, moxa stick overall appearance can be kept, prevent the collapse of moxa stick, safe use.

A moxibustion device with good ventilation includes a moxibustion shell, a moxibustion cover, a moxibustion column, a heat insulation plate, and a positioning sleeve. The moxibustion shell comprises a paper outer shell and a cylindrical support made of metal mesh. The outer shell is fitted onto the outer wall of the cylindrical support. An annular notch is provided on the outer wall of the outer shell, and an adjusting ring is fitted onto the notch. Ventilation holes are distributed on the side wall of the outer shell corresponding to the notch. Adjusting ring through holes are distributed on the adjusting ring. The moxibustion cover is inserted into the top of the cylindrical support, and a moxibustion cover through hole is provided on the side wall of the moxibustion cover corresponding to the ventilation holes. The positioning sleeve is inserted into the bottom of the cylindrical support, and the heat insulation plate is connected to the bottom of the cylindrical support. The advantages of this invention are: the cylindrical support supports the moxibustion shell, maintains the overall shape of the moxibustion device, prevents the device from collapsing, and ensures safe use; by rotating the adjusting ring, the area of ​​the holes on the side wall of the moxibustion shell can be changed, increasing or decreasing airflow, which can better regulate the burning speed of the moxibustion column and the temperature inside the moxibustion shell, resulting in better performance.

The invention discloses a sludge treatment device, and relates to the field of sludge treatment.The sludge treatment device comprises a treatment container, a shell with the top and the bottom open, an outer box and an inner box, the outer box and the inner box are located in the shell, the inner box is located on the inner side of the outer box, and the outer box and the inner box are both in sliding fit with the inner wall of the shell in the longitudinal direction; the top and the bottom of the outer box are open; the top of the inner box is open, the bottom of the inner box is provided with an openable bearing mechanism, and the bearing mechanism is used for bearing sludge in the inner box; the first driving mechanism is used for driving the outer box to slide in the longitudinal direction; the second driving mechanism is used for driving the inner box to slide in the longitudinal direction; the sludge treatment device further comprises a transfer assembly used for transferring sludge between the treatment container and the inner box. The method is used for solving the problem that in the prior art, when part of sludge is dug out for treatment, surrounding sludge is prone to collapse or flow sinking, and the purpose that the surrounding sludge of the oil and gas exploitation station is treated more sufficiently is achieved.

This invention relates to the technical field of flame-retardant coatings, and discloses a method for preparing and applying a transparent, water-resistant modified amino resin flame-retardant coating, comprising the following steps: (1) adding urea to phosphoric acid and heating to dissolve it, then adding soluble starch and heating to react; after the reaction is completed, drying is performed to obtain starch ammonium phosphate flame retardant; (2) adding silica powder to ethylene glycol, dispersing it into a slurry by ultrasonication, then adding hydrolyzed silane coupling agent, grinding and refining, filtering and drying to obtain modified silica powder; (3) mixing starch ammonium phosphate flame retardant, modified silica powder, tannic acid, amino resin and waterproofing agent. This invention, by adding starch ammonium phosphate flame retardant to amino resin, and adding modified silica powder, tannic acid and waterproofing agent as synergistic components, enables the coating to have good transparency and flame retardancy while also having good adhesion and water resistance.