5results about How to "No blockage" patented technology

This invention relates to a valve assembly disposed between a vacuum pump and an adsorption pad in a vacuum system, thereby enabling venting of the pad. The valve assembly includes: a main body having a space within an internal channel; a valve plate capable of being raised / lowered within the space; and vents variablely configured by air gaps formed at the contact points between the valve plate and the upper sill of the space. Initially, temporary venting is performed through the open channel; subsequently, as the plate 'rises,' micro-venting is performed through the vents formed at the contact points between the plate and the upper sill.

The application relates to the technical field of medical textile materials, and discloses an antibacterial and breathable medical gauze sheet, which comprises a base material and an antibacterial functional layer loaded on the base material, and the functional layer is formed by chemical reaction of carboxymethyl chitosan, tannic acid, boric acid, citric acid and zinc ions. Through boric acid complexation and citric acid competitive coordination, a double interpenetrating network structure of covalent bonds and coordination bonds is formed inside and outside the gauze fibers. The structure effectively inhibits the oxidative browning of tannic acid and eliminates the difference in the skin-core distribution of the functional components. The obtained gauze sheet is not only high in whiteness and good in breathability, but also has excellent washing fastness and long-acting and broad-spectrum antibacterial performance.

The utility model belongs to fermentation reactor field relates to a kind of closed type intelligent aerobic fermentation reactor, including reaction tank, stirring lifting cylinder is installed in reaction tank, and stirring lifting cylinder is fixed between reaction tank by support, and the top surface middle part of reaction tank is rotatably installed with stirring lifting shaft, the outside of stirring lifting shaft is installed with stirring lifting auger, and the inner wall of stirring lifting auger is attached with stirring lifting cylinder, heating pipe is installed between the inner wall of the top end outside of stirring lifting cylinder and reaction tank, and aeration pipe assembly is installed on the inner wall of reaction tank and located above heating pipe.The utility model can be located in the upward transport of manure from stirring lifting cylinder inside at the bottom of reaction tank, and from the top opening of stirring lifting cylinder, so that the manure located at the bottom of reaction tank can continuously reach the uppermost of manure in reaction tank interior, so as to realize the stirring of manure, so that manure can be fully contacted with oxygen, avoid the uneven mixing of manure accumulated at the bottom and air.

The invention discloses a short bar feeding and distributing device for aluminum profile extrusion, and relates to the technical field of aluminum profile extrusion, the short bar feeding and distributing device comprises a rack, the top of the rack is sequentially provided with a feeding assembly and a distributing assembly from the front end to the rear end, the feeding assembly comprises a shell fixedly installed at the top of the rack, and a feeding bin is fixedly installed in the front end area of the top of the shell; a first feeding nozzle is arranged at the front end of the feeding bin, a first pushing rod is arranged in the first feeding nozzle, one end of the first pushing rod is installed on the inner wall of the first feeding nozzle through a bearing, and the other end of the first pushing rod is fixedly installed at the output end of a first driving piece arranged on the outer wall of the first feeding nozzle. And a plurality of elastic pieces are arranged on the outer side wall of the first material pushing rod in a staggered mode, it is ensured that the aluminum type short bars can enter the intervals in a split-flow mode, and it is ensured that the aluminum type short bars are not blocked in the feeding process.

The utility model belongs to the technical field of heat exchangers, and discloses a heat exchanger tube fin type core which comprises a core body and a filter screen plate, one end of the core body is fixedly connected with a first flow tube, the outer wall of the first flow tube is fixedly connected with a first flange, and the inner wall of the first flow tube is provided with a threaded groove; a threaded face is arranged on the outer wall of the filter screen plate, and a channel is formed in the inner side wall of the core body. By arranging the core body, the water pipe, the valve, the valve ball, the first water channel, the second water channel and the third water channel, the valve ball is rotated to enable the second water channel to be in a horizontal state, the valve is opened, a descaling agent is injected into the core body, and the descaling agent makes contact with the inner wall of the core body to dissolve scale on the inner wall of the core body; and therefore, the device can treat the scale formed on the inner wall of the core body, the situation that the inner wall of the core body is blocked by the scale is avoided, and the service life of the device is prolonged.