WO2022133554A1 - Válvula para bomba de concretagem de mínimo resíduo - Google Patents
Válvula para bomba de concretagem de mínimo resíduo Download PDFInfo
- Publication number
- WO2022133554A1 WO2022133554A1 PCT/BR2020/050573 BR2020050573W WO2022133554A1 WO 2022133554 A1 WO2022133554 A1 WO 2022133554A1 BR 2020050573 W BR2020050573 W BR 2020050573W WO 2022133554 A1 WO2022133554 A1 WO 2022133554A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- valve
- pump
- duct
- concreting
- minimum waste
- Prior art date
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- 239000002699 waste material Substances 0.000 title claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000012530 fluid Substances 0.000 claims description 13
- 230000009471 action Effects 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 230000003134 recirculating effect Effects 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000004140 cleaning Methods 0.000 abstract description 24
- 239000011440 grout Substances 0.000 abstract description 8
- 230000000717 retained effect Effects 0.000 abstract description 6
- 235000011837 pasties Nutrition 0.000 abstract description 4
- 230000009467 reduction Effects 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 4
- 238000005065 mining Methods 0.000 abstract description 3
- 239000004570 mortar (masonry) Substances 0.000 abstract description 3
- 239000002002 slurry Substances 0.000 abstract description 2
- 238000005461 lubrication Methods 0.000 description 18
- 238000005086 pumping Methods 0.000 description 15
- 238000010276 construction Methods 0.000 description 14
- 239000004519 grease Substances 0.000 description 8
- 239000004568 cement Substances 0.000 description 7
- 238000009826 distribution Methods 0.000 description 6
- 230000001788 irregular Effects 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000005484 gravity Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000013519 translation Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
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- 239000000463 material Substances 0.000 description 3
- 238000011109 contamination Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 241001272720 Medialuna californiensis Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
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- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- -1 mining residues Substances 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
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- 230000003068 static effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B7/00—Piston machines or pumps characterised by having positively-driven valving
- F04B7/0019—Piston machines or pumps characterised by having positively-driven valving a common distribution member forming a single discharge distributor for a plurality of pumping chambers
- F04B7/003—Piston machines or pumps characterised by having positively-driven valving a common distribution member forming a single discharge distributor for a plurality of pumping chambers and having a slidable movement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B7/00—Piston machines or pumps characterised by having positively-driven valving
- F04B7/0038—Piston machines or pumps characterised by having positively-driven valving the distribution member forming a single inlet for a plurality of pumping chambers or a multiple discharge for one single pumping chamber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/0655—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with flat slides
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/044—Construction of housing; Use of materials therefor of sliding valves slide valves with flat obturating members
Definitions
- the present invention describes a valve for a minimum waste concrete pump. More specifically, it comprises a valve for pump, of the alternative type of double piston, provided with an inlet and an outlet duct installed inside the valve container and arranged next to a concrete reception hopper located above the container, allowing concrete to be pumped. and other pasty substances, such as: sludge, mining residues, grout, mortar, dirty water, among others.
- the constructive form of the valve generates a minimum of residue retained after the operation of the equipment, generating a more homogeneous wear of the wear parts, dispensing constant interventions to compensate for irregular wear and the efficiency of use of the pumps, in addition to reducing the cleaning time, which results in a great reduction of operating costs, avoiding the unnecessary displacement of the equipment to the company's headquarters or some other suitable place, destined to the disposal and that gives adequate destination to the residues generated during the cleaning of the equipment after the conclusion of each pumping event.
- this new construction results in a valve that does not need constant lubrication and that performs a linear translation movement, generating a more homogeneous wear of the components and minimizing the need for maintenance on the equipment due to the need for constant interventions to compensate for irregular wear.
- valves of pumps for concreting most used in the market are characterized by having a single conduit (a discharge conduit), which is positioned inside the concrete reception hopper, that is, , this conduit is the valve that works submerged in the concrete inside the hopper.
- waste evacuation normally done with the opening of a gate at the bottom of the hopper, which results in the flow by gravity of most of the concrete retained inside the hopper;
- hopper washing after the hopper is drained, a pressurized water jet is washed to remove the rest of the residues, as well as portions that adhere to the inner walls of the hopper.
- Another aggravating factor that makes it even more inconvenient to have a greater amount of post-operation waste is the fact that most of the places where the equipment is installed to operate are not convenient for the disposal of this waste, as they are on public roads, inside condominiums, company yards, among other places, and it is necessary to collect the equipment with this accumulation of waste inside the hopper to any place that is suitable for disposal and gives the correct destination to the waste, and on some occasions it is possible to dispose of it at the construction site itself.
- the cylinders are connected to the valve components, in order to transmit the switching movement, in an almost static way, in the claimed case, pins and bushings with telescopic movement that will move a few millimeters with the progression of wear on the sacrificial plates.
- the rotary commutation of the current state-of-the-art models generates greater wear on the components, because due to the constructive shape of these valves the plates, in this case a section of the same part of the wear plate located further away from the axis of rotation, that describe a greater stroke during the movement, due to the greater turning radius, will have a more accentuated wear.
- This irregular wear of the plates creates gaps that in turn result in leaks that compromise the good performance of the equipment, which depending on their level, can make the equipment unfeasible.
- some manufacturers recommend a periodic adjustment, which consists of 180° rotation of the wear plates that are possible to rotate.
- US3889713 (Wibau. 1972) describes a valve adapted for use in conduits through which construction mixes, such as concrete mixes, flow.
- the valve apparatus is constructed for cooperation with a pump having two pistons in two respective pump cylinders.
- a cylindrical valve housing is provided with first ports connected to said pump, second ports connected to transport conduit means and third ports connected to transport means. power supply, as well as a three-member two-position valve plug movable back and forth in said valve housing.
- This document cited in the state of the art has 3 ducts, being a straight discharge duct and 2 individual curved ducts that do not interconnect with each other, they have 2 holes that connect with the reception of the fluid and the straight discharge duct as well alternatively connects to two holes, so that outside the housing these two holes are joined by a tubular connection in the form of a 'Y' for the discharge in a single conduction tube.
- This Y'-type connection is an obstacle to fluid flow, as well as restricting cleaning after operation.
- US4046166 (Wibau. 1975) describes a valve specially adapted for use in ducts through which construction mixes, such as concrete mixes, flow.
- the valve cooperates with a pump with pistons in two respective pump cylinders.
- a valve housing forms a flat-walled valve piston chamber.
- the valve plug or piston also has flat walls to fit the valve chamber with its flat walls.
- nnoo eessttaaddoo ddaa teéccnniiccaa has two independent inlet ducts, it has a "Y" type bifurcation connection outside the casing that interconnects the two discharge holes, it is also noted that the discharge duct, when it is connected the bifurcation connection forms an "S" shaped curvature, which compromises the fluid flow and that, together with the "Y" bifurcation, makes access for cleaning difficult. It is also observed that all sides of the housing, in contact with the valve, stay positioned at an angle to the face of the pump cylinders, these angles compromise (or add complexity) to the sacrificial plate wear/seal pressure devices.
- Document KR19960008044 (Choe, Kwang-Soo. 1994) describes an uncured concrete is poured into the supply hopper and, at the bottom of the supply hopper, to a pair of supply passages in fluid communication with, the passages communicating with pumping uncured concrete supplied with a pair of engine pumping passages, the supply passages on either side of the cylinders slide individually opening and closing the inlet valve as an inlet valve pair is provided.
- Document CN 102588268 (Han Guomin. 2012) describes a distribution valve comprising an S-shaped tube, a drive mechanism with a shaft and an eye plate, wherein the drive shaft is fixedly arranged in the S-shaped tube wall; the shaft drive mechanism is connected to the drive shaft.
- the S-shaped tube can Continuously discharge and pump the concrete during the S-shaped tube change process.
- the document CN202273848 (Sany. 2011) describes a supply port, two supply/discharge ports and two pumping ports are arranged in the valve body; the valve core forms two suction passages and a pumping passage; the pumping passage has a predetermined size in the direction of extension of an inner slide.
- Document CN202301262 (Sany. 2011) describes an oscillating drive device, a distribution valve drive shaft and a first drive oil cylinder, wherein the drive mechanism is provided with a drive end of oscillation, the distribution valve drive shaft is connected to the oscillation mechanism; and the first motive oil cylinder is provided with a piston rod which is connected with the oscillating driving end of the oscillating mechanism in a driving manner.
- EP2700852 (Hunan. 2011) describes a dispensing valve that includes a valve housing and a valve core located in the pumping chamber of the valve housing.
- the valve core is rotatably connected to the body valve, thus forming a main axis of rotation (O).
- the valve housing has a discharge port in the entire wall of the housing, a first suction port and a second suction port.
- EP2436927 (Sany. 2010) describes a distribution valve comprising a valve body and a wear resistance plate.
- the valve body comprises a first suction tube and a first pump tube, the rear end of the first suction tube is communicated with an outlet of a material container so as to communicate the material container and a transport cylinder.
- the rear end of the first pumping tube is rotatably connected to a concrete pump distribution line so as to communicate the transport cylinder and distribution line.
- the object of the present invention is a valve for a minimum residue concreting pump that comprises a pump valve, of the alternative type of double piston, provided with an inlet conduit and an outlet conduit installed inside the container. of the valve and arranged next to a concrete reception hopper located above the container, allowing to pump concrete and other pasty substances, such as: sludge, mining waste, grout, mortar, dirty water, among others.
- the constructive form of the valve generates the minimum of residue retained after the operation of the equipment, improving the durability and the efficiency of use of the pumps, besides reducing the cleaning time which results in a great reduction of operational costs, avoiding the unnecessary displacement of the pump. equipment for the center.
- this new construction results in a valve that performs a linear translation movement that reduces component wear and minimizes the need for maintenance on the equipment, as its constructive form does not require constant lubrication.
- valve for a minimum residue concreting pump that provides a hermetic valve container structure equipped with a lid screwed to the structure and which has a mouthpiece and vent points, on the rear face it has a discharge tube and on the front pump tubes.
- valve for a minimum residue concreting pump that provides a structure that is provided in the inner portion by an inlet conduit interconnected to an discharge conduit, each conduit being provided with wear plates.
- valve for a minimum residue concreting pump that provides an inlet duct equipped with a front plate that has three circular holes oriented in the same alignment, and the holes at the ends are channeled in a sides of the plate, by curved tubes in the form of a “knee”, the other end of these curved tubes, join each other forming a new opening in oblong shape and the central circular hole of this plate, it has a projection that allows telescopic connection of the discharge duct.
- valve for a minimum residue concreting pump that provides a discharge duct that has a tapered body provided in its front portion by a circular-shaped opening and in the rear portion by an oblong-shaped opening.
- valve for a minimum residue concreting pump that provides a conduit that has cylindrical nozzles, arranged on both sides, which connect to the conduit nozzles in a telescopic way through a spring that maintains the plates of wear pressed against the walls of the structure.
- valve for a minimum residue concreting pump that provides a valve structure that presents in its frontal portion protrusions arranged in the upper and lower portions for the disposition and housing of the switch cylinders.
- valve for a minimum residue concreting pump that provides switch cylinders that are fixed and positioned in the internal portion of the structure through attachment points for connection with the hydraulic flow.
- valve for a minimum residue concreting pump that provides hydraulic switchgear cylinders, with double action of double passing rod, equipped with rods connected at their ends with the projections of the front plate of the inlet duct and jacket equipped with fixed projections next to the points of the structure and connected to the hydraulic flow to promote the linear movement of the rods and conduits.
- valve for a minimum residue concreting pump that provides, in a second constructive form, a recirculating system for the water of the structure, by means of a water pump, which sends this water to an external circuit. , and in this circuit it passes through a filtering system to retain the residues.
- valve for a minimum residue concreting pump that optionally provides the inlet orifice nozzle to connect to a pipe of rigid pipes or some flexible hose, in order to have the hopper remote, or even to use the pipe to suction fluid from a place that is difficult to access.
- Figure 1 shows the perspective view of the valve for the assembled concreting pump and Figure 1A shows the rear perspective of the valve for the assembled concreting pump.
- Figure 2 shows the front view of the valve for the assembled concrete pump.
- Figure 3 shows the side view of the valve for the assembled concrete pump.
- Figure 4 shows the top view of the valve for the assembled concrete pump.
- Figure 5 shows the bottom view of the valve for the assembled concrete pump.
- Figure 6 shows the perspective view of the valve for the concreting pump, detailing the internal components.
- Figure 7 shows the top perspective view of the valve for the concreting pump, detailing the internal components.
- Figure 8 shows the lower perspective view of the valve for the concreting pump, detailing the internal components.
- Figure 9 shows the side view of the valve for the concreting pump, detailing the internal components.
- Figure 10 shows the side view of the valve for the concreting pump, detailing the internal components.
- Figure 11 shows the exploded view of the valve structure and internal components, detailing its construction.
- Figure 12 shows the perspective view of the intake duct connected to the discharge duct and switch cylinders, detailing the construction.
- Figure 13 shows the side view of the intake duct connected to the discharge duct and switch cylinders, detailing the construction.
- Figure 14 shows the front view of the intake duct connected to the discharge duct and switch cylinders, detailing the construction.
- Figure 15 shows the lower perspective view of the intake duct connected to the discharge duct and switch cylinders, detailing the construction.
- Figure 16 shows the top view of the intake duct connected to the discharge duct and switch cylinders, detailing the construction.
- Figure 17 shows the rear perspective view of the intake duct connected to the discharge duct and switch cylinders, detailing the components' constructiveness.
- Figures 18 and 18A present the perspective views of the discharge duct detailing its construction.
- Figure 19 shows the side view of the intake duct connected to the discharge duct and switch cylinders, detailing the construction of the nozzles and spring.
- Figure 20 shows the top view of the valve for the concreting pump in order to detail the internal components and the linear movement to the left side.
- Figure 21 shows the top view of the valve for the concreting pump in order to detail the internal components and the linear movement to the right side.
- the valve for the minimum residue concreting pump, object of the present invention comprises a valve container structure (10) provided in the upper portion with a screwed cap (11) that aims to allow the opening, in the case for installation and removing the intake duct, and for inspection, cleaning and replacement of wear parts, said cover (11) which has an opening (111).
- the structure (10) On the rear face of the structure (10) there is a discharge tube (12) and a screwed cap (121) that aims to allow the opening, in this case for installation and removal of the drain duct. discharge, and for inspection, cleaning and replacement of wear parts.
- the structure (10) has pump tubes (13) and (13A), and the cover (11) is screwed together with the container (10) in order to allow access to the interior when necessary.
- the structure (10) allows the arrangement of the hopper (not shown) to receive the concrete along the opening (111) arranged in the upper portion so that the concrete is directed to the interior of the inlet duct of the structure (10) by gravity .
- the structure (10) is hermetic so that it is developed to work flooded with water, being equipped with vent points (112) arranged on the cover (11) for pressure equalization and drainage point (103) next to the bottom of the container (10), said lid (11) that allows access to the internal components.
- the structure (10) is provided in the inner portion by an inlet duct (20) interconnected to a discharge duct (30), so that each duct is provided with wear plates (21) and (31).
- the wear plate (21) is arranged between the intake duct (20) and the pump tubes (13) and (13A) of the structure (10) in order to avoid direct contact between the duct (20) and the structure (10), and the wear plate (21) is the one that suffers from the friction of the linear commutation of the set.
- the wear plate (31) is arranged between the discharge duct (30) and the discharge tube (12) of the structure (10) in order to avoid direct contact between the duct (30) and the structure ( 10), and the wear plate (31) is the one that suffers from the friction of the linear commutation of the set.
- the intake duct (20) is provided with a front plate (22) provided with projections (221) at its ends and provided with two openings (23) at the ends connected to each other through a tube (24), said tube (24) that has an opening (241) provided with a wear plate (242) that remains aligned next to the opening (111) of the cover (11).
- the front plate (22) of the duct (20) also has an opening (25) provided with a projection (251) that allows the connection of the discharge duct (30).
- the discharge duct (30) has a tapered body provided in its front portion by an opening (32) of circular shape and in the rear portion by an opening (33) of oblong shape, said opening (32) that fits along the projection (251) of the opening (25).
- the opening (33) provided by the wear plate (31) is aligned with the discharge tube (12) so that its oblong shape allows the conduit (30) to always be aligned with the tube (12) as the valve moves. according to figures 18 and 18A.
- the duct (20) provided by the front plate (22) and openings (23) and (25) is aligned to the pump tubes (13) and (13A) so that the movement of the set is carried out through a switch linear performed through switching cylinders (40) connected together with the projections (221) of the plate (22) through pins (222), in order to allow the movement of the ducts (20) and (30) inside the valve structure ( 10).
- the duct (20) has cylindrical nozzles (26), arranged on both sides, which connect to the nozzles (34) of the duct (30) telescopically through a spring (261) that maintains the wear plates ( 21) and (31) constantly pressed against the walls of the structure (10), resulting in an expansion system permanent high amplitude in order to keep the ducts (20) and (30) always adjusted despite the natural wear of the plates (21) and (31).
- Spiral (helical) springs (261) can be replaced by plate springs (not shown), in order to maintain the same functional characteristics.
- the valve structure (10) has protrusions in its front portion (101) arranged in the upper and lower portions in order to allow the arrangement and accommodation of the switch cylinders (40).
- the switch cylinders (40) are fixed and positioned in the internal portion of the structure (10) through fixing points (102) that allow the connection with the hydraulic flow for movement.
- the switch cylinders (40) of double action with double rod passing through are equipped with rods (41) connected at their ends with the projections (221) and sleeve (42) equipped with projections (421) attached to the points (102 ) of the structure (10) and connected to the hydraulic flow to promote the linear movement of the rods (41), as shown in figure 17.
- valve for the minimum residue concreting pump occurs through the unloading of the concrete into the hopper (not shown) arranged next to the opening (111) of the cover (11) of the structure (10), where the concrete flows through gravity into the inlet conduit (20) through the opening (241) of the tube (24).
- valve being in this state of coupling, then begins a cycle of filling the pump cylinder (13), and the filling of this cylinder (13) is done by the suction of the piston (not shown) inside the cylinder of pump (13) and when the piston inside the cylinder reaches the end of its stroke, this state is detected by a sensor (not shown) that sends a signal to the equipment's hydraulic unit, which in turn simultaneously activates the valve commutation pump.
- the emptying movement of the pump cylinder (13A) occurs simultaneously and at the same rate of filling of the latter.
- the pump with a minimum residue valve does not have a lid at the bottom of the hopper to evacuate the residue that is retained in it and that it is poured on the ground, so that all the concrete is pumped from inside the hopper, to some place inside the construction site, or even at the point where the concrete is poured.
- valve container is drained, which is filled with water and is drained with a exhaust valve/register (not shown) that will be coupled to the nozzle (103) arranged in the lower portion of the structure (10).
- valve container where the conduits (20) and (30) are located, must always be filled with clean water at the beginning of each operation, and drained at the end.
- the valve container flooded with water, is intended to keep it clean, removing residues that propagate between the wear plate sets (21), (31) and (242). These residues will only be the thin cement grout that will be diluted in the water in which the conduits are submerged, and will be removed with the replacement of water after each concreting event.
- the inlet port nozzle (111) of the cover (11) can connect to a pipe of rigid pipes or some flexible hose, instead of the hopper, in order to have the hopper remote, or even to use the pipe to suction fluid from some place that is difficult to access.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Reciprocating Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17/920,959 US20230204111A1 (en) | 2020-12-21 | 2020-12-21 | Valve for minimum waste concreting pump |
PCT/BR2020/050573 WO2022133554A1 (pt) | 2020-12-21 | 2020-12-21 | Válvula para bomba de concretagem de mínimo resíduo |
EP20966191.7A EP4265944A4 (en) | 2020-12-21 | 2020-12-21 | MINIMAL WASTE VALVE FOR CONCRETE PUMP |
BR112021020512A BR112021020512A2 (pt) | 2020-12-21 | 2020-12-21 | Válvula para bomba de concretagem de mínimo resíduo |
Applications Claiming Priority (1)
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PCT/BR2020/050573 WO2022133554A1 (pt) | 2020-12-21 | 2020-12-21 | Válvula para bomba de concretagem de mínimo resíduo |
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WO2022133554A1 true WO2022133554A1 (pt) | 2022-06-30 |
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PCT/BR2020/050573 WO2022133554A1 (pt) | 2020-12-21 | 2020-12-21 | Válvula para bomba de concretagem de mínimo resíduo |
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Country | Link |
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US (1) | US20230204111A1 (pt) |
EP (1) | EP4265944A4 (pt) |
BR (1) | BR112021020512A2 (pt) |
WO (1) | WO2022133554A1 (pt) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116905820A (zh) * | 2023-08-09 | 2023-10-20 | 安徽筑恒建设有限公司 | 一种装配式建筑施工灌浆设备 |
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-
2020
- 2020-12-21 US US17/920,959 patent/US20230204111A1/en active Pending
- 2020-12-21 BR BR112021020512A patent/BR112021020512A2/pt unknown
- 2020-12-21 EP EP20966191.7A patent/EP4265944A4/en active Pending
- 2020-12-21 WO PCT/BR2020/050573 patent/WO2022133554A1/pt active Application Filing
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116905820A (zh) * | 2023-08-09 | 2023-10-20 | 安徽筑恒建设有限公司 | 一种装配式建筑施工灌浆设备 |
CN116905820B (zh) * | 2023-08-09 | 2024-01-23 | 安徽筑恒建设有限公司 | 一种装配式建筑施工灌浆设备 |
Also Published As
Publication number | Publication date |
---|---|
EP4265944A4 (en) | 2024-01-17 |
US20230204111A1 (en) | 2023-06-29 |
EP4265944A1 (en) | 2023-10-25 |
BR112021020512A2 (pt) | 2022-09-06 |
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