38results about How to "Avoid over breaking" patented technology

The present invention is applicable to the technical field of ore mining, and provides an ore crushing and screening device, comprising: a shell with a discharge opening at the bottom, forming a crushing and filtering space inside; a hopper connected to the top of the shell; In the inside of the housing; the first rack is liftable and arranged inside the housing; the second rack is opposite and liftable and is arranged inside the housing, and is spaced apart from the first rack; wherein, the first rack The outer ends of the first socket and the second socket are fixedly connected with support rods, and the bottom of the hopper is slidingly provided with support bridge rods. The support bridge rods have a structure with a high center and low ends. At both ends of the hopper, reciprocating drive parts are installed on the bottom of the hopper, and the reciprocating drive parts drive the supporting bridge rod to reciprocate and slide, pushing the first frame and the second frame to alternately lift and screen the ore. The invention has the advantages of simple structure, high screening efficiency, high energy utilization rate, uniform crushing quality and good synchronization.

A high-performance foaming machine for a foam concrete foaming agent comprises a foaming device (1), an air-driving device (2) and a foaming agent dilute solution supply device (3). The foaming device (1) comprises a foaming tube (4) and a spray mechanism (5). The air-driving device (2) comprises an air compressor (14) and a foaming agent dilute solution storage tank (15). The foaming agent dilute solution supply device (3) is connected to a liquid inlet tube (1506) of the foaming agent dilute solution storage tank (15) through a worm pump (23). The foaming machine can adjust the dilution ratio of the foaming agent and the proportion of the dilute solution and air arbitrarily according to the use instruction of the foaming agent and the desired hardness of the foam, thereby reducing the required amount of the foaming agent, saving the compressed air, and forming foam which is stable and has a large diameter.

The invention belongs to the technical field of walnut shell breaking, in particular to a rotary hitting type walnut shell breaking equipment, comprising a support plate, support columns are welded at the four corners of the lower surface of the support plate, and a support column is welded on the upper surface of the support plate. There is a No. 1 circular support plate on the side, and a No. 2 circular support plate is connected to the inner side of the No. 1 circular support plate. The outer surface of the No. 1 circular support plate is welded with a limit baffle. There is a No. 1 support block welded on the upper side of the support plate. By controlling the No. 3 support block to move up and down repeatedly inside the No. 1 support block, the lower surface of the circular hitting plate is driven to strike the walnuts on the upper surface of the No. 2 circular support plate. Breaking the shell, through this method, can greatly save the use and maintenance costs of the device, and at the same time, the efficiency of shell breaking is also guaranteed to a certain extent; through the external power supply, start the rotating motor, so that the rotating motor drives the rotating rod and the No. 2 circular support plate. turn.

The invention provides a method for preparing Chinese herbal medicine electronic cigarette liquid by wet smashing. The method comprises the following steps: (1) accurately weighing dried Chinese herbal medicines with certain mass, preliminarily smashing the dried Chinese herbal medicines, screening the dried Chinese herbal medicines with a sieve of 5 to 50 meshes, adding a solvent into the preliminarily smashed Chinese herbal medicines according to a certain ratio, uniformly mixing to obtain a mixture, putting the mixture into a high-speed cutting type wet smashing machine for smashing under a certain reaction condition, and discharging the mixture after the mixture is smashed to obtain discharged liquid which is Chinese herbal medicine electronic cigarette liquid basic liquid; (2) uniformly stirring and mixing 70 to 100 percent of the Chinese herbal medicine electronic cigarette liquid basic liquid by mass with 0 to 30 percent of essence and flavor by mass to obtain the Chinese herbal medicine electronic cigarette liquid. Compared with the prior art, the method for preparing the Chinese herbal medicine electronic cigarette liquid by the wet smashing, which is prepared by the invention, is quick, simple, easy to operate, high in extraction rate, energy-saving and environment-friendly. The sensory quality of the electronic cigarette liquid prepared from the Chinese herbal medicine electronic cigarette liquid basic liquid is greatly improved, the sweet greasy feeling in the oral cavity caused by the electronic cigarette liquid is effectively reduced and the symptom of dry mouth after people smoke the Chinese herbal medicine electronic cigarette liquid is relieved.

The invention provides a method for preparing tea-fragrance electronic cigarette liquid through wet grinding. The method comprises the following steps: (1) accurately weighing dry tea leaves with certain weight, carrying out preliminary grinding, carrying out screening by adopting a 5-50-mesh sieve, adding a solvent into the tea leaves after preliminary grinding according to a certain ratio, carrying out uniform mixing, adding the obtained mixture into a high-speed cutting type wet grinder, carrying out grinding under a certain reaction condition, and after grinding, carrying out material discharging, wherein the discharged liquid is base liquid of the tea-fragrance electronic cigarette liquid; and (2) stirring the base liquid of the tea-fragrance electronic cigarette liquid with the weight percentage being 70-100% and essence and flavor with the weight percentage being 0-30% for uniform mixing, thus obtaining the tea-fragrance electronic cigarette liquid. Compared with the prior art, the method for preparing the tea-fragrance electronic cigarette liquid through wet grinding provided by the invention is rapid, simple and convenient, is easy to operate and high in extraction ratio, and is energy-saving and environmentally friendly. The sensory quality of the electronic cigarette liquid prepared by blending the tea-fragrance base liquid prepared by adopting the method provided by the invention is greatly promoted, so that the overly sweet feeling brought to the mouth cavity by the electronic cigarette liquid is effectively reduced, and the symptoms of parching mouth and scorching tongue caused after smoking are alleviated.

A self-excitation type pulse polycrystalline diamond compact (PDC) drill bit comprises a drill bit upper body at the upper portion, wherein an inner spray nozzle is installed inside a drill bit body, a drill bit blade is fixed outside the drill bit body, a diamond compact is inlayed on the drill bit blade, a central hole is formed on the axis of the drill bit upper body, and the diameter of the central hole is 55-80mm. A contracting taper hole is formed at the lower end of the central hole, the inner spray nozzle is arranged at the lower end of the contracting taper hole, the lower end of the inner spray nozzle is a self-excitation pulse cavity in the drill bit body, and the lower portion of the self-excitation pulse cavity is communicated with 4-6 spray nozzles. A rotating wheel can be further installed in the self-excitation pulse cavity at the lower portion of the inner spray nozzle inside the drill bit body, and liquid in a drill rod forms self-excitation pulse in the self-excitation pulse cavity and then is sprayed out through the spray nozzles at the lower portion to produce pulse oscillation, so that water pressure at the bottom of the drill bit is varying, the hydraulic rock breaking capacity of the drill bit at the bottom of a well is improved, meanwhile excessive breaking of rocks at the bottom of the well is also avoided, and the impact effect is more than two times of the effect of common steady pressure jet flows.

The invention provides a wet grinding preparation method of electronic smoke oil with tobacco flavor. The method comprises the steps of S1, accurately weighing and taking a certain mass of dry tobacco, conducting primary grinding, passing the ground tobacco through a 5-50 mesh net, adding a certain proportion of solution into the ground tobacco, mixing the solution uniformly, adding the solution into a high speed cutting wet grinder, grinding the solution in a certain reaction condition, taking out the solution after the reaction, wherein the solution taken out is the base oil of the electronic smoke oil with the tobacco flavor; S2, mixing the base oil of the electronic smoke oil with tobacco flavor with the mass percent of 50-100% and the essence and perfume with the mass percent of 0-50% uniformly to obtain the electronic smoke oil with tobacco flavor. Compared with the prior art, the electronic smoke oil with tobacco flavor prepared by mixing the base oil with tobacco flavor according to the method has a substantial elevation of sensual quality, can effectively reduce the mouth sweat and sticky feeling brought by the electronic smoke oil, and alleviate the symptoms of drying mouth and dry tongue after smoking.

A method of preparing pipe fittings from polyolefin master batch is provided. The method includes: A) a step of preparing the master batch, wherein the master batch comprises 40-70% by weight of polyolefin, 0.5-1% by weight of an antioxidant, 5-15% by weight of hollow glass beads, 2-10% by weight of an organic compatibilizer, 5-20% by weight of nanometer calcium carbonate, 1-5% by weight of a lubricant, and 3-10% by weight of a polyolefin elastomer; B) a step of mixing raw materials at a high speed to obtain a primary material mixture; C) a step of mixing raw materials at a low speed to obtain a secondary material mixture; D) a step of granulating by a granulating machine to obtain granulated master batch; and E) a step of injection molding of the pipe fittings, namely a step of mixing the obtained granulated master batch and polyolefin (different color master batch) and performing injection molding to obtain the pipe fittings.

Disclosed is a tobacco stem pulping process. The process includes the following steps: delivering a mixture of tobacco stems 10-18% in mass concentration and water to a middle-concentration pulping machine in two-stage series for defibering pulping; delivering pulp after being defibered to a high-concentration hydrapulper, wherein mass concentration of the pulp is 10-18%, pulping temperature is maintained to be at 60-80 DEG C, and pulping time is 15-30min; entering a leaching stage after pulping is completed, and manufacturing paper with the pulp after retreatment. The tobacco stems are properly defibered, so that uniformity in tobacco stem pulping is realized, and smooth extraction of soluble substances in the process of leaching is facilitated; due to adoption of high-concentration grinding and high-concentration hydrodynamic pulping, overmuch tiny broken tobacco stems cannot be generated as high-concentration pulping does, and macromolecular substances like pectin cannot be dissolved out too much, so that purification of leaching liquid and improvement of sensory quality are facilitated, favorable factors in two aspects are combined, products are enabled to be good in bulk, higher in softness and excellent in liquid absorbing performance, and physical quality and sensory quality are improved.

The invention discloses a coking middling coal dms-flotation combined separation process, and belongs to the technical field of coking middling coal separation. The process comprises the steps of 1, primary size mixing flotation operation, 2, hierarchical dewatering operation, 3, crushing and screening operation, 4, coarse slime separation operation, 5, desliming operation, 6, ore grinding dissociation operation, 7, secondary size mixing operation and 8, secondary flotation operation. The coking middling coal dms-flotation combined separation process is simple in procedure, small in investment, low in energy consumption, little in operation cost, high in separation efficiency and remarkable in economic benefit.

The invention discloses a mining differential three-roller tooth crusher, which comprises a front roller screen, a large tooth roller (6), a small driven tooth roller (7), a small driving tooth roller (8), a small tooth roller transmission gear (11) and a driving device, wherein the front roller screen is provided with six rollers (2) with wear-proof shaft sleeves; transmission between every two adjacent rollers (2) is realized through a roller idle wheel (3); each roller (2) is arranged according to a uniform thickness probability screening principle; materials are subjected to probability uniform-thickness screening after entering the roller screen from a feed end, a great amount of small materials are rapidly screened, and a small amount of large materials are rapidly conveyed to a three-roller crushing cavity; the three-roller crushing cavity is provided with a large crushing tooth roller and two small crushing tooth rollers; the materials are crushed through the three rollers in multiple stages under the comprehensive action of shearing, stretching and bending crushing mechanisms. The mining differential three-roller tooth crusher has the characteristics of high working efficiency, high processing capacity, high reliability, low energy consumption, no blocking, capability of avoiding excessive crushing of the materials and the like.