37results about How to "The cooling rate is small" patented technology

The invention provides a sensible heat recovery device with ash capture for preventing slag bonding and staining, which comprises a heat recovery unit. The heat recovery unit comprises a housing, and a high-temperature section radiation heat exchange unit and a low-temperature section convection heat exchange unit are sequentially arranged in the housing along an airstream direction of high-temperature gas. The sensible heat recovery device is characterized by also comprising a slag collecting chamber for effectively capturing fused slag in high-temperature gas; the slag collecting chamber is connected with an air inlet arranged on the housing through a transition section; and a chilling section is arranged between the high-temperature section radiation heat exchange unit and the low-temperature section convection heat exchange unit, and the chilling section cools the gas entering the low-temperature section convection heat exchange unit, so that gaseous alkali metal contained in the gas can not be condensed in the low-temperature section convection heat exchange unit. The sensible heat recovery device capable of effectively preventing a heated surface from being slagged and stained disclosed by the invention is particularly suitable for recovery of high-temperature ash gas generated after combustion or gasification of easily-stained or slagged coal.

The invention discloses a sea water desalination device and a sea water desalination method. The device comprises a water storage tank, wherein the water storage tank is connected with a water inlet pipe; the top of the water storage tank is provided with a steam outlet; a first condenser is arranged in the water storage tank; one end of the first condenser is connected with a compressor which isconnected with an evaporator; a water collection channel is formed below the evaporator; the device is provided with a cavity; the steam outlet is communicated with the cavity; the cavity is providedwith an air inlet which is communicated with the exterior; the evaporator is arranged in the cavity; the cavity is provided with an air outlet on the evaporator; the air outlet is provided with a fan; the cavity is provided with an air return port which is communicated with the air outlet; the output end of the first condenser is connected with a second condenser; the second condenser is communicated with the evaporator; and an expansion valve is arranged between the second condenser and the evaporator. The method comprises a step of simultaneously obtaining fresh water from sea water and air. The sea water desalination device and the sea water desalination method of the invention have the advantages of high fresh water yield, low energy consumption, simple structure and low cost.

The invention discloses a slab conveying device with a variable track. The slab conveying device comprises a fixedly arranged middle-end conveying track, wherein the middle-end conveying track is inclined; the front end and the rear end of the middle-end conveying track are respectively connected with a front-end conveying track and a rear-end conveying track; the front end of the front-end conveying track is fixed on a stander; the lower side at the rear end of the front-end conveying track is connected with a second push cylinder; when the second push cylinder is in a contraction state, the rear end of the front-end conveying track is butted with the front end of the middle-end conveying track to form a plane; the rear end of the rear-end conveying track is fixed on the stander; the lower side of the rear-end conveying track is connected with a first push cylinder; when the first push cylinder is in an extending state, the front end of the rear-end conveying track is butted with the rear end of the middle-end conveying track to form a plane; oil cylinders are used for pushing the conveying tracks, so that the conveying tracks can be freely converted between a horizontal state and an inclined state; the number of the conveying steps is small; lifting and conveying can be synchronously realized; the conveying time is effectively shortened; the slab conveying device has the characteristics of low cost, energy conservation and high efficiency.

A controlled rolling and controlled cooling system for bars comprises a first cooling section at the position of an outlet of an intermediate mill group, a machine cooling section of a finishing mill group, a second cooling section between the finishing mill group and a third flying shear, a third cooling section between the third flying shear and a cooling bed, a sensor module and a central control unit. The first cooling section, the second cooling section and the third cooling section respectively comprise one or a plurality of cooling lines arranged on a horizontal moving trolley and a bypass roll table, one cooling line or the bypass roll table can be selectively connected to a production line by horizontally moving the horizontal moving trolley, and every production line comprises one or a plurality of series connection coolers. Every cooler is connected to a water supply main pipe through one water supply branched pipe, control valves are arranged in the water supply branched pipes, and the coolers connected to the production lines are selected and used by opening and closing of the control valves. According to the controlled rolling and controlled cooling system, a plurality of cooling sections can be selected flexibly, the coolers in every cooling section can also be selectively used simultaneously, and accordingly the system not only is good in applicability, but also improves bar finished product performances.

The invention provides a control system and method for cold energy utilization in an LNG gasification process. The control system comprises a coolant storage tank, a coolant conveying pump, a seawater heater and an LNG gasifier. LNG is gasified through heat exchange of the LNG gasifier and coolant; the gasified natural gas is conveyed to downstream natural gas users; the coolant after heat exchange is conveyed to cool energy users for cooling; the coolant after being heated is conveyed to the coolant storage tank; and after being discharged from the coolant storage tank, the coolant is conveyed to the seawater heater through the coolant conveying pump, and the coolant enters the LNG gasifier after reaching the specified temperature. The control system for cold energy utilization in the LNG gasification process adopts cascade control, so that the phenomenon that the temperature of the natural gas can not be controlled timely due to flow variation of an LNG inlet is avoided; and the process of heating the coolant by seawater also adopts cascade control, so that the phenomenon that the temperature of a coolant outlet can not be controlled timely due to flow variation of a coolant inlet is avoided.

The invention discloses a defoaming and slagging heat insulation agent for blast furnace ironmaking. The heat insulation agent comprises the following raw materials in parts by weight: 15-20 parts of portland cement clinker, 25-30 parts of graphite, 12-18 parts of fly ash, 20-25 parts of vermiculite, 15-18 parts of sodium carbonate and 1-3 parts of acidized graphite. The defoaming and slagging heat insulation agent has the functions of slagging, defoaming, keeping the temperature, absorbing the inclusions of molten steel and preventing the oxidation of molten steel. After the product is added, the liquidity of iron slag is good, the slag-iron separation effect is good, the recovery rate of molten steel is high and molten steel can not stick to the ladle and wall and can not crust.

The invention discloses an environment-friendly slagging heat-preservation agent used for blast and medium-furnace iron making and a preparation method thereof. The environment-friendly slagging heat-preservation agent is prepared from the following raw materials in parts by weight: 35-45 parts of flue ashes, 15-25 parts of fluorine-sodium carbon, 20-30 parts of vermiculite soil, 2-6 parts of graphite, 8-12 parts of wollastonite and 1-3 parts of adhesive. The preparation method of the environment-friendly slagging heat-preservation agent comprises the following steps: firstly, preparing raw materials into powder with grain size of 20-100 meshes, stirring and mixing for 7-15 minutes, spraying water accounting for 7%-13% mass of the total raw materials, and continuously stirring for 7-15 minutes; then, pelletizing; and finally, drying at 30-40 DEG C to prepare the product. According to the environment-friendly slagging heat-preservation agent and the preparation method thereof disclosed by the invention, the adopted flue ashes, the fluorine-sodium carbon, the vermiculite soil, the graphite, the wollastonite and the adhesive are taken as the raw materials, so that in a manufacturing process, the flue ashes, the fluorine-sodium carbon, the vermiculite soil, the acidified graphite and the wollastonite can be sufficiently adhered by using the adhesive; on the other hand, in a using process, the raw materials of the product do not produce dust and smoke, so that the product is free of dust and smoke in the using process, and free of environmental pollution.

The invention relates to the technical field of battery production equipment, in particular to a casting and welding production process for high-efficiency lead-acid batteries, which is characterized by comprising the following steps: S1, a splitting process, the battery is automatically forwarded by a feeding conveying system, and the feeding conveying system A plurality of casting and welding production systems are arranged on the side; S2, alternate casting and welding processes, the casting and welding production system includes a casting and welding mechanism, a plurality of groups of lead immersion mechanisms, and a one-to-one correspondence with the lead immersion mechanism, and can be set between the casting and welding mechanism and each corresponding The casting and welding mold for transfer and transfer between the lead immersion mechanisms, the casting and welding mechanism carries the battery pack that is shunted and transferred by the shunt mechanism, and the casting and welding mold obtains molten lead liquid from the lead immersion mechanism to the casting and welding mechanism and the battery pack. For casting and welding work, multiple casting and welding dies are alternately rotated to transport the lead liquid required for casting and welding to the casting and welding mechanism. Realize the flow operation of battery casting and welding, and cooperate with the casting and welding molds to alternate to the casting and welding mechanism for casting and welding, shortening the production time.

The invention discloses separation equipment of protein from a starch sugar liquefied solution, which structurally comprises a laminar flow tank system, a protein separation storage tank, and a protein separation sieve which are sequentially connected, wherein the laminar flow tank system comprises 2-6 laminar flow tanks connected in series, and the laminar flow tank at the end is connected with a feed port at the bottom end of the protein separation storage tank through a pipeline; and an overflow port is arranged at the top of the protein separation storage tank, and the protein separation sieve is arranged below the overflow port. The method for separating the protein from the starch sugar liquefied solution by utilizing the equipment comprises the following steps of: preparing a starch pasting liquid; B, treating the starch pasting liquid by the laminar flow tank system to obtain a primary liquefied solution; C, the primary liquefied solution being overflowed from the laminar flow tanks into the protein separation storage tank for layering; and D, the primary liquefied solution being overflowed from the protein separation storage tank to the surface of the protein separation sieve for protein separation. According to the method, a series of targeted treatment of the starch sugar liquefied solution is conducted, and the efficient separation of the protein from the starch sugar liquefied solution is realized by reasonably setting the sieve mesh size and the sieve mesh density of the protein separation sieve.