37results about How to "Guaranteed gas production" patented technology

The present invention relates to the calcium carbide field, in particular to a method for calcium carbide quality control. First, calculate the theoretical content and saturation coefficient of CaO and C in the mixed material: set the CaO content of lime in the mixed material as a, and the C content of the carbon material as b , the theoretical content of CaO is A, and the theoretical content of C is B. Use the rate value method to control the material ratio, set K as the saturation coefficient, and determine the K value; secondly, determine the detection value A of the CaO content in the actual mixed material Ⅰ and saturation coefficient K Ⅰ , and sampling, analysis, record the detection value of CaO A Ⅰ and the detection value of C B Ⅰ , and calculate K Ⅰ value, and then count the day A Ⅰ or K Ⅰ pass rate; finally, set A Ⅱ or K Ⅱ is the control index value, A Ⅱ =A±1% or K Ⅱ =K±0.02, when A Ⅰ in A Ⅱ range or K Ⅰ in K Ⅱ qualified within the range. By adopting the calcium carbide quality control method of the present invention, the problem in the prior art that the accuracy of furnace material proportioning is low during calcium carbide processing and resulting in low calcium carbide quality is effectively solved.

The invention belongs to the technical field of wastewater treatment and discloses a biological treatment process for cassava alcohol wastewater. The process comprises the following steps: after distilling the waste water, it is filtered through a grit chamber to remove silt and cassava slag, and it is treated for 5-6 hours under stirring and aeration conditions, and then the pH value is adjusted to 6-6.5; The anaerobic treatment is carried out once at ~62°C, and after screening, the second anaerobic treatment is carried out at a temperature of 38~42°C, and then enters the membrane bioreactor for denitrification treatment and mud-water separation; the separated wastewater enters The aerobic tank is used for aerobic treatment; the effluent is further treated through a nanofiltration device, or treated with a downflow continuous fixed bed by adding water purifiers and powdered activated carbon to obtain discharge water or reuse water that meets the standards. The invention has the advantages of simple process, good treatment effect and low comprehensive cost, and realizes the harmonious unity of environmental benefit and economic benefit.

The invention relates to an unconventional gas reservoir horizontal well gas lift drainage gas recovery device, which comprises multiple casings (1), multiple oil pipes (2), compressors (4), booster main pipes (5), multiple booster tubes Compression branch pipe (3) and control main engine; an oil pipe (2) and booster branch pipe (3) are inserted into each casing (1), and a ring is formed between the oil pipe (2) and the inner wall of the casing (1) empty, the multiple booster branch pipes (3) are connected to the compressor (4) through the booster main pipe (5), a pressure sensor is set in each annular space, and each oil pipe (2) is connected to the booster The branch pipes (3) are all provided with electromagnetic valves, the signal output end of the pressure sensor is electrically connected to the control host, and the signal output end of the control host is electrically connected to a plurality of electromagnetic valves. The control host of the present invention performs cyclic pressurization on each casing (1) to ensure the gas production of multiple gas wells on one platform, reduce production costs and improve production efficiency, and at the same time ease the gradual decrease of formation pressure.

The invention discloses an air compression method and system with a self-precooling function. According to the method, air is compressed by multi-stage compression and interstage cooling, a cooling medium is used for recycling interstage compression heat and exergy, the recycled heat is used as a heat source, and cooling capacity is generated by an absorption refrigeration method and is used for precooling to-be-compressed air before each stage. The system mainly comprises three parts, i.e., a compressor unit gas circuit subsystem, a compressor unit water route subsystem and an absorption refrigeration machine subsystem. The air compression method and system are particularly suitable for being used in summer or high temperature environment; when the air is compressed by the air compression method and system, the gas production rate of the compressed air can be ensured, the moisture content of the compressed air is reduced, the pressure ratio of a compressor in each stage is increased, and power consumption in the compression process of each stage is obviously reduced; besides, the interstage compression heat and exergy of all the stages are fully utilized, and the energy usage ratio of the system is further improved.

The invention discloses a two-stage anaerobic treatment system for cassava alcohol wastewater, comprising a primary heat exchanger, a high-temperature anaerobic fermentation tank, a primary drum screen, a secondary drum screen, a secondary heat exchanger, a sedimentation tank, and an air flotation tank , regulating pool, medium temperature UASB reactor. The waste water enters the high-temperature anaerobic fermentation tank for high-temperature anaerobic fermentation after being cooled by the primary heat exchanger, and then enters the UASB for medium-temperature anaerobic fermentation after passing through two-stage drum sieves, secondary heat exchangers, and sedimentation air flotation to remove suspended solids and part of COD fermentation. The advantages of the system are: the biogas generated by the two-stage anaerobic process is collected and utilized, and the wastewater enters the subsequent aerobic stage for further treatment; the entire treatment process is simple, easy to manage, low energy consumption in production and operation, high in treatment efficiency, less in sludge output and easy to dispose of .

The invention discloses a methane tank with a novel structure, which comprises a main tank and a water pressure chamber, wherein the main tank comprises a methane storage room and a fermentation tank, a methane guide pipe is arranged at the top of the methane storage chamber, an excrement inlet is formed in one side of the main tank, and the other side of the main tank is communicated with the water pressure room; an overflow opening is formed in the water pressure chamber, and the excrement inlet is formed in the sidewall of the fermentation tank; an excrement outlet is formed between the fermentation tank and the water pressure chamber, and the excrement outlet is located in the other sidewall of the fermentation tank; the upper edge of the excrement inlet and the top end of the excrement outlet are on the same horizontal line; the bottom of the fermentation tank downwards inclines to the water pressure chamber from the sidewall, where the excrement inlet is located in, and extends to the sidewall where the overflow opening of the water pressure chamber is located in; an excrement dreg drainage channel with a concave semi-spherical cross section is arranged at the bottom of the fermentation tank; the whole methane storage chamber takes the shape of a trapezoid wider in upper part and narrow in lower part, the upper edge of the excrement inlet is arranged at the bottom end of the sidewall of the methane storage chamber, the methane guide pipe is located at the top of the trapezoid and provided with a safety valve. The invention aims to provide the methane tank with the novel structure, which is constant in pressure, convenient for discharging dreg, low in probability of incrustation and high in methane output.