66results about How to "Play the effect of saving energy and reducing consumption" patented technology

The invention relates to a high-voltage power distribution room. By adoption of a method, working time of an axial flow fan, an air conditioner and a dehumidifier can be given an overall consideration, the working efficiency of the dehumidifier can be improved, and energy conservation and emission reduction can be realized under the premise of ensuring that the temperature and humidity in the high-voltage power distribution room are in a normal state. When external air enters the high-voltage power distribution room, and if the outdoor humidity is greater than indoor humidity, a single chip microcomputer controls dry and wet air opening switching equipment to close a dry air opening; dehumidifier air inlet switching equipment closes an indoor air inlet opening, and meanwhile, air entering the room is dehumidified; if the outdoor humidity is lower than indoor humidity, the single chip microcomputer controls the dry and wet air opening switching equipment to close a wet air opening, to enable external air to directly enter the high-voltage power distribution room from the dry air opening; and if the air humidity in the high-voltage power distribution room exceeds a normal range, the single chip microcomputer controls the dehumidifier air inlet switching equipment to close an outdoor air inlet, and meanwhile, the air in the room is dehumidified, so as to enable the air humidity in the high-voltage power distribution room to be lowered to the normal range.

The invention relates to a sludge dewatering device and a using method thereof. The sludge dewatering device comprises a sludge dewatering box, a workbench and a storage box, the sludge dewatering box is arranged on the workbench, the storage box is arranged under a drain pipe of the sludge dewatering box, and side extrusion mechanisms are arranged on the sludge dewatering box and the workbench; according to the sludge dewatering device, an extrusion dewatering mode is adopted for dewatering, the dewatering mode can be suitable for dewatering a large amount of sludge, the effect of efficient dewatering can be achieved in the dewatering process, the arrangement and dewatering structure of the dewatering device is reasonable in design, operation is easy, and in the dewatering process, dewatering can be conducted through cooperation of multiple steps, the dewatering effect is achieved, the dewatering time in the sludge dewatering process can be greatly saved, saves the cost investment in the dewatering process can be saved, and the market requirements can be better met.

The invention discloses a preparation method of sodium sulfide, the preparation method comprises the following steps: a, adding raw coal powder and anhydrous sodium sulphate into a mixer to obtain a mixture for standby use; b, spraying the mixture into a calcining furnace to obtain sodium sulfide alkali billet for standby use; c, thermally melting the sodium sulfide alkali billet into a liquid toobtain a reducing leaching solution; d, evaporating the reducing leaching solution to about 250 g / L to obtain a sodium sulfide semi-finished product leaching solution; e, removing heavy metal ions inthe leaching solution until the total content of metal ions in the leaching solution is less than that of 10ppm filtrate; f, pumping the filtrate into a crystallization tank, and performing rapid vacuum freeze-crystallizing and centrifugal dehydration to obtain high-purity sodium sulfide. The raw coal powder is ground and crushed, so that the contact area of the raw coal powder and the anhydrous sodium sulphate is bigger, the reaction is more sufficient when heating and reducing, and the yield of the sodium sulfide is improved; by negative pressure calcination and temperature control, the content of soluble impurities of the product can be reduced, the conversion rate of raw materials can be improved, consumption is reduced, and the effect of energy saving and consumption reduction can beobtained.

The invention provides a working method of a high-voltage distribution room. The working time of an axial flow fan, the working time of an air conditioner and the working time of a dehumidifier can be given overall consideration, the working efficiency of the dehumidifier can be improved, and on the premise of guaranteeing that the temperature and humidity in the high-voltage distribution room are in normal states, the technical purposes of saving energy and reducing consumption are achieved.

The invention discloses a porous granular ammonium nitrate fuel oil explosive, and also discloses a preparation method of the porous granular ammonium nitrate fuel oil explosive. The method has the advantages that 1, by adding the waste activated carbon adsorbed with mineral oil steam and TNT, the activated carbon and substances adsorbed by the activated carbon can be used as a reducing agent in the porous granular ammonium nitrate fuel oil explosive and can replace a part of diesel oil, the use amount of the diesel oil is reduced, and the effect of saving energy is achieved; 2, the waste activated carbon is used as a preparation raw material of the porous granular ammonium nitrate fuel oil explosive, so that the treatment problem of the waste activated carbon can be solved, the treatment cost of the waste activated carbon is reduced, and harm generated in the treatment process of the waste activated carbon is avoided; according to the invention, waste can be turned into wealth, and the production concept of long-term sustainable development is met; 3, the waste activated carbon is granular, so that the free-running property of the porous granular ammonium nitrate fuel oil explosive is not influenced after the waste activated carbon is added as a raw material, and on-site mixed loading is facilitated; and 4, the detonation velocity, brisance, work capability and other properties of the porous granular ammonium nitrate fuel oil explosive can be effectively improved.