30results about How to "High pressing pressure" patented technology

The invention discloses a sewage sludge reduction dewatering method which is based on a reduction dewaterer. The reduction dewaterer comprises at least one dewatering module, wherein each dewatering module comprises a two-way cylinder (1) and two symmetrically arranged dewatering units (2); each dewatering unit (2) comprises a dewatering shell (2.1), a supporting plate (2.2) and an extrusion plate (2.3); the supporting plate (2.2) is positioned on the outer side of the dewatering shell (2.1); the extrusion plate (2.3) is positioned on the inner side of the dewatering shell (2.1); the dewatering shell (2.1) is provided with a feed port (2.4); the two-way cylinder (1) is provided with two piston rods (1.1); and the two piston rods (1.1) are respectively connected with the extrusion plates (2.3) of the two dewatering units (2). The feed dewatering and extrusion dewatering are carried out at the same time, thereby enhancing the work efficiency. Meanwhile, the feed pressure is ingeniously used for dewatering in the extrusion dewatering process, thereby enhancing the power use effect.

The present invention has a main object to provide a transparent conductive heat sealing material of which antistatic property does not deteriorates even at a low humidity, and has a transparency to an extent of permitting visual recognition of the contents and a carrier tape lid using the same. To achieve this object, the transparent conductive heat sealing material of the invention is characterized by a heat-sealable synthetic resin, and conductive fine particle having a 50% particle size of up to 1.0 mum.

The invention discloses an efficient and deep reduction treatment method for sewage sludge. The method is based on a reduction treatment device, the reduction treatment device comprises at least one dehydration module, each dehydration module comprises a bidirectional oil cylinder (1) and two symmetric dehydration units (2), and each dehydration unit (2) comprises a dehydration barrel (2.1), a supporting plate (2.2) and an extruding plate (2.3). The supporting plates (2.2) are located on the outer sides of the dehydration barrels (2.1), the extruding plates (2.3) are located on the inner sides of the dehydration barrels (2.1), and feeding ports (2.4) are formed in the dehydration barrels (2.1). Each bidirectional oil cylinder (1) is provided with two piston rods (1.1) which are connected with the extruding plates of two corresponding dehydration units (2) respectively. According to the method, feeding dehydration and squeezing dehydration are carried out at the same time, so that work efficiency is improved; meanwhile, the pressure of fed materials is ingeniously utilized for dehydration in the squeezing dehydration process, and therefore the power use effect is improved.

The invention relates to a concave and convex rolling shaft pressure device of a belt filter press. The concave and convex rolling shaft pressure device of the belt filter press comprises a ring-shaped flocking filter belt and a pressure rolling shaft, wherein a driven rolling shaft and a driving rolling shaft are respectively arranged at the two sides of the circular arc surface of the pressure rolling shaft; a plurality of extrusion rolling shafts are arranged under the pressure rolling shaft; the flocking filter belt is sheathed on the driven rolling shaft, the driving rolling shaft and the extrusion rolling shafts, and is extruded by the pressure rolling shaft and the extrusion rolling shafts; the flocking filter belt is also internally provided with a plurality of tension rolling shafts used for enabling the flocking filter belt to be in a tensioning state; the circumferential surface of the pressure rolling shaft has a concave-convex structure of a gear. The concave and convex rolling shaft pressure device is simple in structure, good in dehydration effect, good in mud cake stripping effect, little in sludge residue, not easy to block and small in cleaning water quantity, and thus reducing secondary pollution.

The invention relates to an elastomeric diaphragm filter plate, which comprises a filter frame. The center layer of the filter frame is provided with a rigid core plate, the front and rear wall of the core plate are both covered with an elastic diaphragm, the elastic diaphragm and four sides of the filter frame are in sealing connection, sealed gas chambers are formed between the elastic diaphragm and the front and rear wall of the core plate, the side of the filter frame is provided with a water inlet of the water inlet hole, which extends into the core plate and extends from the inside of the core plate to both sides and is communicated with the two gas chambers, the apex angle of the filter frame is provided with a feeding hole, the feeding hole is communicated with a cavity outside the elastic diaphragm, the bottom angle of the filter frame is provided with a water outlet hole, the water outlet hole is communicated with the cavity outside the elastic diaphragm, two horizontal liquid outlet pipes are disposed inside the bottom frame of the filter frame, and the liquid outlet pipes are communicated with the cavity outside the elastic diaphragm. The structure has the characteristics of good compaction sealing performance, high filter plate strength, large pressing pressure, more uniform dewatering, and large pressing area, etc.

The invention provides a convenient moving and fixing type cold pressing device for edible oil. The device comprises an oil pressing barrel, a supporting frame, universal self-locking wheels, a base,a filtering bucket, a collecting barrel and an oil pressing piston, wherein grooves are formed in four corners of the bottom part of the base, and the universal self-locking wheels are mounted in thefour grooves; the upper ends of the universal self-locking wheels are connected through bolts in a penetrating manner and are fixed into the grooves; a protruded side is arranged at the upper end of the base; the supporting frame is fixedly connected to the middle part of the base; fixing plates are welded around the bottom part of the supporting frame; the bottom parts of the fixing plates are welded on the base, and the sections of the fixing plates are triangular; the oil pressing barrel is arranged at one side of the supporting frame, and one side of the oil pressing barrel is fixedly connected to the supporting frame; a plurality of oil draining holes are formed in the bottom part of the oil pressing barrel, and the oil pressing barrel is filled with oil; the oil pressing piston is arranged above the oil; guide ribs are arranged on the inner wall of the oil pressing barrel; guide grooves which fit the guide ribs are formed in the side edge of the oil pressing piston; and the device can be conveniently moved and fixed through the grooves and the universal self-locking wheels.

The invention discloses a reduction dehydration device for sewage sludge. The reduction dehydration device comprises at least one dehydration module. Each dehydration module comprises a bidirectional oil cylinder (1) and two symmetric dehydration units (2). Each dehydration unit (2) comprises a dehydration barrel (2.1), a supporting plate (2.2) and an extruding plate (2.3). The supporting plates (2.2) are located on the outer sides of the dehydration barrels (2.1), and the extruding plates (2.3) are located on the inner sides of the dehydration barrels (2.1). Feeding ports (2.4) are formed in the dehydration barrels (2.1). Each bidirectional oil cylinder (1) is provided with two piston rods (1.1) which are connected with the extruding plates (3) of the two corresponding dehydration units (2) respectively. According to the reduction dehydration device, feeding dehydration and squeezing dehydration are carried out at the same time, so that work efficiency is improved; meanwhile, the pressure of fed materials is ingeniously utilized for dehydration in the squeezing dehydration process, so that the power use effect is improved, and product energy consumption is reduced.

The invention discloses a filter press membrane filter plate, comprising a diaphragm and a core board, wherein a pressure diaphragm piece is arranged at each side of the core board; the periphery of the core board is formed through the connection of screws and nuts; an elastic sealing element is arranged between the diaphtagm and the core board; the end faces of the screws and nuts are sealed by plastic cover or plastic welding. The filter press membrane filter plate has the advantages of no use of specialized welder, small investment, changeable diaphragm, high intensity, higher pressure, longer service life, and higher utilization strength.

A medical sterilization container has a removable container cover, which is provided in a wall area (4) with gas-exchange openings (5), with a filter unit (55) for gas exchange has an interchangeable filter sheet covering the gas-exchange openings (5) on the inside, which is arranged within a ring-shaped circumferential frame element (15) and is held pressably against an inside of the wall area (4) by a pressure washer (36) provided with openings (45). The pressure washer (36) is detachably connected to frame element (15) or the wall area (4) and has a ring groove (48) with a preferably elastic sealing ring (49), which seals the wall area (4) provided with the gas-exchange openings (5) against the frame element (15). To prevent a shifting of and/or damage to the filter sheet during a clamping process, the pressure washer (36) can be pressed against the wall area (4) by a spring washer (35). The spring washer (35) is provided with bayonet connection elements (38) which can be meshed and unmeshed with bayonet catch elements (20) of the frame element (15). The spring washer (35) is rotatable opposite the pressure washer (36) about a common central axis of rotation of the pressure washer (36) and of the spring washer (35).

The invention discloses a press filtering device provided with a core filtering unit inside. The device comprises a press filtering component containing the filtering unit and a pressure applying component, wherein the filtering unit is placed in a pressed material to become the core of the pressed material. The pressed material is placed in a relatively sealed cavity, and the press pressure (up to 10 MPa at maximum) is increased. Due to the sealed press operation system, the loss of the pressed material during pressing is avoided, the press efficiency is improved, the press operation environment is improved, the space is fully utilized, and 50% of the floor area is reduced. For municipal sludge difficult to dewater, the dewatering rate can reach about 50%; for production of oil press andsugar refining, the liquid yield can be increased by 0.5%.

The invention relates to a method for producing a fuel from vegetable oil in order to operate of diesel internal combustion engines. In said method, the oleaginous fruit is pressed, and the dripping oil is filtered. According to the invention, the dripping vegetable oil containing the cloudy matter is mixed with a clay material in a first step before being filtered and is filtered in a second step.

The invention relates to the field of papermaking, provides a production method of dampproof copy paper and solves the problem that the copy paper absorbs moisture easily and is low in strength, poorin glue applying effect and prone to linting and powder falling in the prior art. The method comprises the following processing steps: (1) raw material preparation; (2) beating and grinding into pulp;(3) papermaking by a paper making machine: the pulp obtained after beating and grinding is fed into a pulp blending tank for pulp blending, and then the pulp is processed by a pre-papermaking tank, aslushing tank, a high box, a headbox, a mesh, a squeezing part and a drying cylinder and subjected to calendering processing.