282results about How to "Lower replacement costs" patented technology

The utility model relates to a natural gas filter, which belongs to a filtering device for natural gas pipelines in petroleum gathering and transportation projects such as natural gas fields, gas transmission and distribution pressure regulation systems, and city gate stations. It includes a cylinder with an opening on the top, a filter element placed in the cylinder, and a sealing mechanism for sealing the opening. The cylinder is provided with a raw material gas inlet, a purified gas outlet, and a sewage outlet. The filter element is The upper end is close to the opening, and the lower end of the filter element is connected to the outlet of the purified gas. The characteristic is that the sealing mechanism includes a high neck extending on the top of the cylinder, a sealing cover, a quarter ring, a protective cover, and fixing screws. Advantages: opening and closing the container becomes fast, convenient, time-saving, labor-saving and cost-saving; the sealing mechanism has a self-locking structure, which uses the pressure of its own natural gas in the container to lift the sealing cover, and the sealing cover and the high neck The space is sealed by an O-ring, and the four-part ring lifts the cover to meet the requirements of self-locking sealing. The sealing performance is good, which can prevent the container from leaking and reduce the incidence of accidents.

The invented manufacturing method includes following steps. (1) Uncoiling, flattening steel strip. (2) After three steps of stamping, through machine press and upgrading stamping mold, the steel strip is divided into two continuous jugged strips in same size. (3) Two strips of iron core are processed as two rounded helicoids loose iron core separated from the strips by wrapping machine. (4) With being located in mould, welding the said loose iron core obtains integral stator iron core having regular teeth and specific size. (5) Welded iron core put into shaping device through oil press is shaped. (6) Finishing step. The method provides advantages of high utilization rate, good quality of product, low price, and simple structure of equipment.

The invention relates to a solid and oil removal method and device for MTO (methanol to olefin) / MTP (methanol to propylene) chilled water and washed water. The method disclosed by the invention mainly comprises the following steps of carrying out ultrafiltration membrane separation on MTO / MTP chilled water, feeding an ultrafiltration membrane concentrated solution into a three-phase cyclone-separator separation system, and recovering a catalyst and oil; cooling ultrafiltration membrane permeated liquid, and feeding the obtained liquid back to a chilled water system to cyclically reuse; carrying out ultrafiltration membrane separation on MTO / MTP washed water, feeding an ultrafiltration membrane concentrated solution into the three-phase cyclone-separator separation system, and recovering a catalyst and oil; and cooling ultrafiltration membrane permeated liquid and feeding the obtained liquid back to a washed water system to cyclically reuse. The invention also provides a solid and oil removal device for MTO / MTP chilled water and washed water.

The invention relates to a paperboard gluing device. The paperboard gluing device comprises a glued paperboard, a coating support, guide rollers, a gluing roller and a transmission roller. The gluing roller is arranged under the transmission roller. A gap is reserved between the gluing roller and the transmission roller, and a channel for the glued paperboard to exactly pass is formed. The transmission roller is arranged on the top of the gluing support in a vertical adjusting manner through a hanging rod. A glue box is arranged at the bottom of the gluing roller and internally contains glue. Part of the wall barrel of the gluing roller is immersed in the glue, a glue scraping device is arranged at the position close to the gluing roller and comprises a scraper, a glue recycling box and a supporting rod arranged in the glue recycling box, the supporting rod is vertically arranged in the glue recycling box in a telescopic manner, and the scraper is movably arranged on the supporting rod. According to the paperboard gluing device, gluing is easy, the gluing amount is even, and the glue is not likely to pollute the gluing device; and the gluing device can be applied to the logistics field and other fields.

The invention relates to the technical field of laser lights, and provides a laser display system. The red light output efficiency of the complete machine and the stability of changing along with time are improved. The laser display system comprises a laser light source module, a fluorescent wheel, a light-combining mirror, an optical lens and a current drive device, wherein the optical lens is located at the rear end of the light-combining mirror; the fluorescent wheel comprises a substrate and a fluorescent powder layer; the fluorescent powder layer coats different color segments of the substrate in a ring; the current drive circuit is connected with the laser light source module; and when the laser lights emitted from the laser light source module irradiate fluorescent powder of different color segments on the fluorescent wheel, the current drive device outputs current values corresponding to the fluorescent powder of various color segments to the laser light source module. The laser display system is suitable for a laser display device.

The invention provides a high-temperature condensed water recycling and purifying with a ceramic membrane filter. The high-temperature condensed water recycling and purifying with the ceramic membrane filter comprises a concentrating tank, a dual-pump structure, the ceramic membrane filter, a cleaning tank and a water purifying tank; the water outlet of the concentrating tank is connected with the water inlet of the dual-pump structure through a pipeline; the water outlet of the dual-pump structure is connected with the circulating water inlet of the ceramic membrane filter; the circulating water outlet of the ceramic membrane filter is connected with a communicating pipe of the dual-pump structure through a pipeline; the water purifying port of the ceramic membrane filter is connected tothe water purifying tank through a pipeline; the water inlet of the cleaning tank is connected with the water purifying port of the ceramic membrane filter through a three-way pipeline; the cleaning solution outlet of the cleaning tank is connected with the water inlet of the dual-pump structure through a three-way pipe; and the cleaning water returning port of the cleaning tank is connected withthe circulating water inlet of the ceramic membrane filter. The high-temperature condensed water recycling and purifying with the ceramic membrane filter is divided into two processing units so that separation and filtration can be separated; and by continuous concentration of water, a processing device for separating according to the physical characteristics of a medium is provided. The device occupies a small area, has high integration degree and a short construction period, and is easy to install.

The invention discloses a method and a system for remotely monitoring a communication network storage battery, which mainly solve the problem that the service life of the storage battery is influenced because the workload of the communication network storage battery is large and the manual maintenance is not easy in place, can synchronously control the storage batteries of a plurality of substations to automatically charge and discharge, have high working efficiency, save labor force, and prolong the service life of the storage battery. The system comprises a rectification module of each communication substation, and is characterized by also comprising a discharge load, a power supply monitoring unit, a storage battery routing inspection device, a substation communication server, a main station communication server and a remote computer, wherein the discharge load is arranged at the communication substation and used for connecting with the communication substation to accelerate the discharge of the storage battery; the power supply monitoring unit is used for controlling one of the rectification module and the discharge load to be switched on with the battery and monitoring the charge / discharge voltage of the battery; the storage battery routing inspection device is used for acquiring charge / discharge state running parameters of the storage battery; and the substation communication server and the main station communication server are used for realizing that the remote computer receives the data acquired by the power supply monitoring unit and the storage battery routing inspection device and sends remote control commands to the power supply monitoring unit.

The invention relates to a supported phosphorus-vanadium-cesium-lanthanum catalyst and application thereof, particularly a catalyst for synthesizing methyl acrylate from formaldehyde and methyl acetate and application thereof.. The invention aims to provide a catalyst for preparing methyl acrylate from methyl acetate and formaldehyde, which has the advantages of high catalytic performance and long service life, and application thereof. According to the technical scheme, the active components of the catalyst are vanadium, phosphorus, cesium and lanthanum, the charge capacity of vanadium is 0.2-2 mmol / g, and the V:P:Cs:La mol ratio is 1:(0.5-1.5):(0.1-1.1):(0.01-0.05). The invention can be used for preparing methyl acrylate from methyl acetate and formaldehyde, and has the advantages of high catalytic performance and long service life.

The invention discloses a natural gas filter belonging to a natural gas pipe filtering device used in a petroleum collection and transmission engineering such as a natural gas field, a fuel gas transmission and distribution and pressure-regulating system and city gate stations and so on. The natural gas filter comprises a cylinder with an opening on the upper part, a filtering core arranged in the cylinder and a closed mechanism used for sealing an opening. The cylinder is provided with a feed gas inlet, a purified gas outlet and a drain, the upper end of the filtering core is close to the opening, the lower end of the filtering core is communicated with the detergent gas outlet. The natural gas filter is characterized in that the closed mechanism comprises a hub which is extendedly arranged on the top of the cylinder, a sealing cover, a quartered ring, a protecting cover and a fixing screw. The natural gas filter has the advantages that an opening vessel is rapid and convenient, time and labor-saving and cost-saving; the closed mechanism is provided with a self-locking structure, which uses the self-pressure of natural gas to prop up the sealed cover which is sealed with the hub through an O-shaped ring, the quartered ring props up the protection cover so as to meet the requirement of sealing; moreover, the sealing performance is excellent, the leakage of the vessel is prevented and the occurrence of accidents is reduced.

The invention belongs to an electric automobile type, especially to a cell wiring arrangement method of the electric automobile characterized by parallely connecting a plurality of identical single lattice accumulators to a parallel battery, series connecting a plurality of the parallel batteries with mutual connection between each single accumulator, forming a unit series parallel rectangular accumulator battery, then connecting the unit series parallel accumulator battery to a needed accumulator battery through a bus, distributing the accumulator battery on different sections of an automobile chassis to balance the chassis gravity center, performing a battery management to the parallely battery formed by parallel connection of the single lattice accumulators, recording charging and discharging data of the parallel accumulator battery, and respectively displaying the data on a panel. The electric automobile produced by the invention has advantages of low use cost, low battery replacement cost, convenient maintenance, greater actual usage cost than gasolene cost, good performance and is suitable for the electric automobile and hybrid powder electric automobile field.

The invention provides a liquid detergent throwing device which is accurate in metering, simple in structure, low in cost and convenient to use and operate. The liquid detergent throwing device is provided with a main channel (2), a water inlet valve (1) is connected to a main channel inlet, a main channel outlet is connected with a washing bucket water inlet, the liquid detergent throwing device is provided with a piston (6), a one-way valve A (3), a one-way valve B (5) and a detergent A box (4), the piston is connected to the main channel, a main channel water inlet section is constituted between a piston inlet and the main channel inlet, a main channel outlet section is constituted between a piston outlet and the main channel outlet, an inlet of the one-way valve A is connected with the detergent box A, an outlet of the detergent box A bypasses the main channel water inlet section, the one-way valve B is connected to the main channel water outlet section, and an inlet and an outlet of the one-way valve B corresponds to the piston outlet and the main channel outlet respectively. The liquid detergent throwing device is used for feeding water for a washing machine and throwing detergent.

The present invention relates to a device for manufacturing tempered glass using chemical strengthening and a manufacturing method therefor. The present invention manufactures tempered glass by raising the temperature of plate glass and preheating the plate glass at first and second preheating units step by step; substituting with potassium ions within a potassium nitrate solution of a chemical strengthening unit; cooling the plate glass through first and second slow cooling processes at first and second slow cooling units; and cleaning the plate glass by fine bubbles while securing stability of the glass at a cleaning unit. Due to this feature, the present invention can maximally shorten the process time for manufacturing tempered glass to considerably enhance yield and improve defect rate, and further can manufacture all types of plate glass such as thin plate glass and thick plate glass into chemically tempered glass regardless of the standard of plate glass.

The invention relates to a BX high-end three-dimensional integrated solid-liquid synchronous deeply sewage-treating device and a manufacturing method. The device is characterized by forming a set of complete sewage treating system device by three-dimensionally combining power transmission, double-vortex gearshift, dosing neutralizing, oil-water separation, aeration biochemical treatment, solid-liquid centrifugal separation, sweeping de-sliming, sludge wiping, overhead storage, biologic gnawing, deep physical absorption, malnutrition reduction, PH value, heavy metal (other pollutants), turbidity self-detection, cross circulation backwashing, sterilization and disinfection, water purification and draining, overhead bearing support and automatic control system. The energy consumption is low, the running cost is low and the industrial wastewater, rural sewage, municipal (other) sewage and reclaimed water are locally intensively treated nearby, so that the requirements for standard emission and resource reutilization are met; the device has obvious effects of cleaning production, capacity promotion and effect enhancement; the device has huge national benefit or public benefit at the aspects of water resource shortage, water pollution, sustainable economic development maintenance and promotion for energy saving and emission reduction.

The invention discloses a method for automatically adjusting a reaction end point in a continuous precipitation production process of rare earth carbonate. The method comprises the following steps: enabling rare earth liquid to enter from a first-stage continuous precipitation tank, adding a precipitating agent into the continuous precipitation tank, and performing a continuous neutralization reaction; mounting an online pH meter at a circulating position of the continuous precipitation tank, and adjusting the addition amount of the precipitating agent so as to keep the pH value of the continuous precipitation tank to be 5.6-6.4 to obtain qualified rare earth carbonate product. By the method, production is stable and automatic continuous precipitation of the rare earth carbonate can be achieved.

The invention discloses a reverse osmosis-based high-concentration sewage treatment method. The reverse osmosis-based high-concentration sewage treatment method comprises the following steps of firstly pre-filtering and pre-heating the sewage; carrying out the reverse osmosis treatment on the preheated sewage; feeding the preheated sewage to the bottom of a reverse osmosis treatment device; feeding the sewage on the bottom into a primary sewage laminar flow passage through an elongated distributing hole, dispersing the sewage to the periphery of a laminar flow disc through a spoke-shaped guide passage arranged on the surface of the laminar flow disc, enabling the sewage to upwards reversely enter the other side of the passage when the sewage flows to the edge of the laminar flow disc, then converging the sewage onto a central hole, enabling the sewage to upwards reversely enter a secondary sewage laminar flow passage through the elongated distribution hole, circulating the sewage to form a radiated S-shaped route from bottom to top, and finally discharging the sewage through a concentrated liquid discharging port; a water purification component permeates a reverse osmosis membrane of a filter membrane assembly to be conveyed to a permeate liquid outlet to be discharged. The reverse osmosis-based high-concentration sewage treatment method has the advantages of high sewage treatment efficiency, high water yield, low energy consumption, long service life of the filter membrane and the like.

The invention relates to a window cleaning kit for a wire bonding apparatus, a wire bonding apparatus including the same and a cleaning method of capillary using the same; the apparatus can effectively clean foreign matters attached on end portions of the capillaries in a long term process using the wire bonding; the cleaning kit for wire bonding apparatus can fix a wire bonding object, can be arranged on a window clamp plate having a hole in a fixed manner for usage, and can be used as the cleaning kit in a dismounting state; the cleaning kit comprises a vibration generation plate and a grinding sheet; the vibration generation plate is placed on the window clamp plate; the grinding sheet is attached on the vibration generation plate and linked with the vibration generation plate.

The invention discloses a system, technology and method for de-nitrating flue gas of a cement kiln and recovering the waste heat of flue gas of a cement kiln. The system comprises a preheater, a wasteheat boiler, a highly hot air blower, a high temperature bag deduster, an SCR denitration reactor, a raw mill, a kiln tail deduster, an induced draft fan, a heat exchanger, and a chimney. A flue gasoutlet in the tail part of a rotary cement kiln is communicated with an inlet in the lower part of the preheater through a pipeline. The outlet in the top of the preheater is communicated with the inlet in the top of the waste heat boiler through a pipeline. The outlet in the lower part of the waste heat boiler is communicated with the inlet of the high temperature bag deduster through a pipeline.The outlet of the high temperature bag deduster is communicated with the inlet of the SCR denitration reactor through a pipeline. The outlet in the bottom of the SCR denitration reactor is communicated with the inlet of the raw mill through a pipeline. The outlet of the raw mill is communicated with the inlet of the kiln tail deduster through a pipeline. The ultralow temperature waste heat utilization and ultralow pollutant discharge are effectively co-researched. The content of NOx in flue gas of a cement kiln is efficiently reduced, the energy consumption is low, and finally discharged fluegas meets the discharge requirements.

The invention discloses a washing and sweeping vehicle with a double-circulation filter system. The washing and sweeping vehicle comprises a vehicle chassis, a draught fan, a suction air duct, a suction pipe, a suction plate, a brush plate and a water spraying device. According to the double-circulation filter system, a sewage box is connected with a first-stage water pump through a pipeline, the first-stage water pump is connected with a second-stage water pump through a pipeline, the second-stage water pump is connected with one or more filters. The filter is connected with the sewage box through a pipeline. A pressure regulation valve is arranged on the connection pipeline between the filter and the sewage box. The connection pipeline between the first-stage water pump and the second-stage water pump is connected with the connection pipeline between the filter and the pressure regulation valve through a pipeline. The clear water outlet of the filter is connected with a clear water box through a pipeline. The filter is a ceramic membrane filter which comprises a ceramic membrane pipe arranged in a sealed shell. The two ends of the sealed shell are used as a sewage inlet and a sewage outlet respectively to be connected with pipelines. A clear water outlet is formed in the sealed shell. By means of the washing and sweeping vehicle, the effective working time of environmental sanitation devices can be greatly prolonged, the sewage discharge amount can be decreased, and the utilization rate of water resources is increased.

The invention relates to a method for resource utilization of skim serum, and in particular relates to a method for recycling rubber and quebrachitol from skim serum, which belongs to the technical field of resource utilization of rubber. The method comprises the following steps: 1, filtering the skim serum by a micro-filtration membrane so as to obtain a micro-filtration concentrated liquid and a micro-filtration penetrating fluid; 2, adding a sulfuric acid solution into the micro-filtration concentrated liquid for solidifying, and drying the obtained solid so as to obtain recycled rubber; 3, filtering the micro-filtration penetrating fluid by an ultra-filtration membrane so as to obtain an ultra-filtration concentrated liquid and an ultra-filtration penetrating fluid; 4, feeding the ultra-filtration penetrating fluid into a resin for purifying, subsequently eluting so as to obtain an eluant, and crystallizing and re-crystallizing the eluant so as to obtain a quebrachitol crystal. By the method, dried rubber and quebrachitol can be simultaneously recycled from the skim serum, the waste resource is effectively recycled, and great social benefits, environment benefits and economic benefits are obtained.

A driver assistance apparatus for a vehicle includes an object detection sensor that acquires data in at least one of a driving direction of the vehicle and around the vehicle. The driver assistance apparatus also includes a processor that detects, based on the acquired data, an object and determines, based on the acquired data, at least one attribute of the detected object. The processor detects that the vehicle has collided with the object and determines, based on detecting that the object has collided with the vehicle and based on the at least one attribute of the object, whether to perform a hood lift-up or pedestrian protection airbag deployment. The processor further provides a control signal for the hood lift-up or the pedestrian protection airbag deployment based on determining whether to perform the hood lift-up or the pedestrian protection airbag deployment.

The invention discloses a fore panel, it includes: shell with opening front; drying drum installed in the shell interior; heating device used for providing worm air and fan; the top cover installed on the top of shell; and fore panel component installed front the shell opening. The fore panel component includes: the fore panel; device door installed at the central position of panel; control panel installed under the fore panel and the edge frame installed around the fore panel and the control panel; the fore panel includes: the shell cover and the outer cover; the back frame of shell cover is installed on the edge frame of shell; the outer cover is installed front the shell cover to form the frontal appearance of drying machine and the outer cover is detachable; the beneficial effects are: it not only make users can replace the front panel colors of dryer very conveniently according their will, and the replacement cost is low. In addition, since the edge frame of drying machine fore panel is very tidy, it brings elegant and beautiful visual effects and enhances the viewing of the products.

The invention relates to a solid and oil removal method and device for MTO (methanol to olefin) / MTP (methanol to propylene) chilled water and washed water. The method disclosed by the invention mainly comprises the following steps of carrying out ultrafiltration membrane separation on MTO / MTP chilled water, feeding an ultrafiltration membrane concentrated solution into a three-phase cyclone-separator separation system, and recovering a catalyst and oil; cooling ultrafiltration membrane permeated liquid, and feeding the obtained liquid back to a chilled water system to cyclically reuse; carrying out ultrafiltration membrane separation on MTO / MTP washed water, feeding an ultrafiltration membrane concentrated solution into the three-phase cyclone-separator separation system, and recovering a catalyst and oil; and cooling ultrafiltration membrane permeated liquid and feeding the obtained liquid back to a washed water system to cyclically reuse. The invention also provides a solid and oil removal device for MTO / MTP chilled water and washed water.

The invention relates to a tension control method for cold-rolled strip steel in the acid continuous rolling working procedure. According to the tension control method, a withdrawal and straightening machine frequency converter and a PLC are adopted for controlling tension of the strip steel on a withdrawal and straightening machine section, when a set value of the tension of the strip steel on the withdrawal and straightening machine section is larger than zero, positive tension control is adopted, when the set value of the tension of the strip steel on the withdrawal and straightening machine section is smaller than zero, negative tension control is adopted, positive or negative switch control over the tension of the strip steel on the withdrawal and straightening machine section is achieved, the tension of strip steel in a pickling bath is controlled by controlling the tension of the strip steel on the withdrawal and straightening machine section, the tension of the pickling bath is increased substantially, and the problems that due to an existing control mode, the surface of the strip steel is scratched, rectorites are replaced frequently, and loss is caused are solved.

The invention belongs to the field of nonferrous metal recovery, and particularly relates to a method for recovering vanadium, tungsten and titanium elements from a waste SCR denitration catalyst. Themethod for recovering the vanadium, tungsten and titanium elements comprises the steps of raw material pretreatment, vanadium separation and recovery, tungsten separation and recovery and titanium recovery; and by means of the recovery process, high-value recovery products such as V2O5, Na2WO4 and titanium-rich slag can be recovered from the waste SCR denitration catalyst. A recovery process hasthe advantages of low cost, the high element recovery rate, excellent recovered product quality, easiness in industrial application and the like, and has the extremely high application value in the field of waste SCR denitration catalyst recovery.

This vehicle body rear structure is provided with: a left and right rear-side frame (21) that extend in the front-back direction of the vehicle body (12); and a rear panel assembly (27) that forms a closed-cross-section section (41) extending in the direction of vehicle width intersecting the rear-side frames (21), is provided to the back end (25) of the rear-side frames (21), and configures the bottom of a vehicle body rear opening (37). The rear panel assembly (27) is provided with a bulkhead (45) that is disposed in the closed-cross-section section (41) at the upper surface (43) of the rear-side frames (21), and that partitions the interior of the closed-cross-section section (41) with surfaces oriented in the direction of vehicle width.

The invention discloses an air purifying device for a textile workshop. The air purifying device for the textile workshop comprises a shell, an electromotor, a filter tank, a water tank, an activatedcarbon layer and a dehumidifier. A protection net is arranged on the right end of the shell; the electromotor is arranged on the left side of the protection net and is fixed into the shell through aninstallation frame; a fan blade is arranged on an output shaft on the right side of the electromotor; an air collecting cover is arranged on the left side of the electromotor; the filter tank is arranged on the left side of the air collecting cover; the air collecting cover and the filter tank are connected through an air inlet pipeline; the water tank is arranged on the lower part of the filter tank; a filter screen is arranged on the bottom part of the filter tank above the water tank; the activated carbon layer is arranged on the upper part of the filter screen; and an exhaust fan is arranged on the left side of the filter tank. Through arranging the shell, the electromotor, the filter tank, the water tank, the activated carbon layer and the dehumidifier, the air purifying device for the textile workshop provided by the invention solves the problems of high cost for frequently replacing a filter device and high air humidity after filtration and purification.

A self-powered manual-automatic window with shutters arranged inside hollow glass comprises a window body, inner glass, outer glass, a shutter overturning and shutter blind lifting executing mechanismarranged on the upper part of the window body, a shutter blind arranged in a shutter blind cavity and a manual operation mechanism corresponding to one side of the window body. The self-powered manual-automatic window with the shutters arranged inside the hollow glass is characterized by further comprising an automatic operation mechanism, an overturning shaft work mode switching mechanism and anautonomous power supply mechanism, wherein the autonomous power supply mechanism comprises a positioning device, a motor, a signal receiving control box and a signal transmitting operation box, the positioning device is connected with the motor and the signal receiving control box, the motor is arranged on the upper part of the window body, the motor and the manual operation mechanism are connected or disconnected with the shutter overturning and shutter blind lifting executing mechanism, the signal transmitting operation box is connected with the signal receiving control box, the overturningshaft work mode switching mechanism is arranged on the upper part of the window body and is connected with the signal receiving control box, the autonomous power supply mechanism is arranged on the upper part of one side of the outer glass. The self-powered manual-automatic window with the shutters arranged inside the hollow glass is flexible in selection, has reasonable functions and achieves agood energy saving effect.

The invention belongs to the technical field of prataculture machinery in the field of agricultural machinery and discloses a pasture and biomass briquetting machine. The briquetting machine comprises a rack (1), a motor (2), a driving belt (3), a loading hopper (4), a mold disc (5), a collecting and discharging device (8), a spindle (9) and a plurality of mold sleeves (7), wherein the mold disc (5) is a hollow disc; horn-shaped mold holes (6) facing the center of the mold disc (5) are formed in a side wall of the mold disc (5); the mold sleeves (7) are inserted into the mold holes (6) and are in clearance fit with the mold disc (5); the mold disc (5) is internally provided with a plurality of press rollers (10) distributed uniformly; the press rollers (10) are contacted with the internal surface of the side wall of the mold disc (5); the press rollers (10) are mutually connected by rotating arms (11). The pasture and biomass briquetting machine can meet requirements of different material compression technologies, is low in production cost, high in efficiency, simple in structure and convenient to dismount and maintain, and operates safely and reliably.

The invention discloses a method for controlling ultrafiltration element pollution in water treatment and relates to the field of purification treatment of used water. A pretreatment process is addedin an existing reverse osmosis water purification technology, and meanwhile, an ultrafiltration element cleaning method is improved. As for pretreatment, a flocculation device is additionally added infront of a mechanical filtration device. The ultrafiltration element cleaning method, to be specific, is a physical and chemical washing method which sequentially uses an alkali cleaning method, an acid cleaning method and an oxidant cleaning method. The alkali cleaning method is to perform forward and reverse washing on an ultrafiltration element with sodium hydroxide in strong alkali to removeorganic impurities and oil; the acid cleaning method is to remove inorganic impurities in water with hydrochloric acid; the oxidant cleaning method aims to kill bacteria and remove dirt. With the adoption of the method, the service life of the ultrafiltration element is prolonged on the basis of the prior art, the produced water quality is improved, waste of the water resource is avoided, and greater economic benefits are created.