CN219348546U - Flow state backfill mobility detection device - Google Patents

Abstract

The utility model relates to a flow state backfill material fluidity detection device, which is characterized in that: the device comprises a storage hopper, wherein the size of an upper port of the storage hopper is larger than that of a lower port of the storage hopper; a screen plate is arranged at the upper port of the storage hopper, and a plurality of screen holes which are uniformly distributed are formed in the screen plate; the bottom end of the storage hopper is provided with a discharging groove communicated with the storage hopper, the discharging groove is arranged in a downward inclined mode, and a switch valve is arranged at the lower port of the storage hopper or at the upper port of the discharging groove; the lower part of the blanking groove is provided with a flow groove, the position of the flow groove is matched with the lower port of the blanking groove, and at least two side plates of the flow groove are detachable. The utility model can realize the detection of the flowing speed, the flowing distance and the flowing state of the flowing backfill, effectively ensure the construction efficiency and the construction effect of the flowing backfill, ensure the backfill quality and the backfill compactness of the flowing backfill, reduce the risks of sedimentation, water seepage and the like of a foundation pit of a later engineering, and has important guiding significance on the performance analysis and the construction of the flowing backfill.

Description

Flow state backfill mobility detection device

Technical Field

The utility model relates to the technical field of filling material detection, in particular to a flow state backfill fluidity detection device.

Background

The fluid backfill is mainly prepared from a curing agent and soil in the construction waste, wherein the curing agent accounts for 10-25%, the soil accounts for 65-75%, the water accounts for 17-20%, and the main components of the soil comprise construction waste particles and construction waste residue soil. The fluid backfill is a material for backfilling narrow spaces such as foundation fertilizer grooves of building lands, and the application scene of the fluid backfill is characterized by large longitudinal depth, generally 10-20 meters, even deeper, small transverse width, and generally about 1 m. The construction of the flowing backfill is generally to directly discharge the flowing backfill into a fertilizer tank through a concrete canning transport vehicle, and realize the construction of a narrow space through vertical impact force and the fluidity of the material. Flowability is an important performance index for fluid backfill materials.

Slump barrels are commonly used to detect slump of materials to characterize the flowability of the materials. The size of the slump barrel is 10cm in the inner diameter of the upper opening, 20cm in the inner diameter of the lower opening and 30cm in the height, the slump barrel is placed on an iron sheet or an iron plate in the test, after the slump barrel is lifted, the slump phenomenon is generated on the inner material due to self gravity, and the height of the highest point of the slump material is subtracted from the height of the barrel to obtain the slump of the material, so that the fluidity of the material is represented. However, the slump barrel is suitable for coarse particle concrete materials with the particle size of more than 20mm, the fluid backfill material has larger differences from concrete in terms of mix proportion design, material composition and mixture performance, the particle size is usually smaller, the water cement is larger, the slump of the fluid backfill material is measured by using the slump barrel to be generally more than 20cm, and no obvious performance distinction exists between different materials, so that the flow performance of the fluid backfill material cannot be accurately detected by using the slump barrel.

The existing device suitable for detecting the fluidity of the fluid material is provided with a cylindrical barrel, wherein the inner diameter of the cylindrical barrel is 7-10cm, the height of the cylindrical barrel is 10-15cm, the cylindrical barrel is placed on a glass plate during a test, after the barrel is lifted, the material is leveled into a round shape, and the fluidity of the material is represented by measuring the diameter of the round shape. However, detecting the fluid materials through the cylindrical drum has the following problems that firstly, in the flowability test process, the cylindrical drum is manually lifted, the materials are instantaneously diffused, and the material flowing time cannot be measured; secondly, the fluidity of the material detected by adopting the cylindrical drum is the fluidity in an open state, and the fluidity of the material in a narrow space cannot be intuitively represented.

In summary, the flow state material fluidity detection device in the prior art has the following problems:

1) The slump barrel is suitable for coarse particle concrete materials with the particle size of more than 20mm, and the slump barrel cannot accurately detect the flow property of the flowing backfill;

2) When the cylindrical barrel is used for detecting the flowability of the material, the flow time of the material cannot be measured, and the flowability of the material in a narrow space cannot be intuitively represented.

Disclosure of Invention

The utility model aims to provide a flow state backfill material fluidity detection device which solves the defects in the prior art, and the technical problem to be solved by the utility model is realized by the following technical scheme.

The utility model provides a flow state backfill mobility detection device which characterized in that: the automatic feeding device comprises a storage hopper, wherein the size of an upper port of the storage hopper is larger than that of a lower port of the storage hopper, and scale marks are arranged on the storage hopper; the upper port of the storage hopper is provided with a screen plate, a plurality of screen holes which are uniformly distributed are formed in the screen plate, and the distribution range of the screen holes is matched with the upper port of the storage hopper; the bottom end of the storage hopper is provided with a discharging groove communicated with the storage hopper, the discharging groove is arranged in a downward inclined mode, and a switch valve is arranged at the lower port of the storage hopper or at the upper port of the discharging groove; the lower part of the blanking groove is provided with a flow groove which is long-strip-shaped and is matched with the lower port of the blanking groove in position, the lower end face of the blanking groove is separated from the inner bottom face of the flow groove by a preset distance, and at least two side plates of the flow groove are detachable.

Preferably, the storage hopper is in an inverted cone shape.

Preferably, the upper port diameter of the storage hopper is 25cm, and the lower port diameter is 3cm.

Preferably, the sieve holes on the sieve plate are square sieve holes, and the side length of each sieve hole is 25mm.

Preferably, the length of the discharging groove is 30cm.

Preferably, the inclined angle between the blanking groove and the horizontal plane is 45 degrees.

Preferably, the height of the flow groove is 15cm, the length is 50cm, and the width is 10cm.

Preferably, the distance between the lower end surface of the discharging groove and the inner bottom surface of the flowing groove is 30cm.

Preferably, the flow channel is made of a transparent material.

In the utility model, when the fluidity of the fluid backfill is detected, the storage hopper is fixed on the supporting platform and is vertically placed, the sieve plate is placed on the upper end surface of the storage hopper, or is suspended above the storage hopper, the backfill is poured into the storage hopper from the upper part of the sieve plate, the switch valve is opened, and the material flows into the flow groove below from the obliquely arranged blanking groove under the action of gravity. Measuring the time of material flow in the storage hopper through a stopwatch to represent the flow speed of the fluid backfill; the length of the flowing state backfill material flowing into the strip-shaped flowing groove is measured to represent the flowing distance of the flowing state backfill material; observing the uniformity and segregation layering state of the section of the hardened fluid backfill material to represent the flowing state of the fluid backfill material; and comprehensively judging the fluidity of the fluid backfill material through the flow speed, the flow distance and the flow state of the fluid backfill material.

The flow state backfill fluidity detection device provided by the utility model has the following beneficial effects:

1) The sieve plate is provided with a plurality of sieve holes which are uniformly distributed, so that large-particle materials such as large aggregates and large wood blocks in the materials can be filtered, and the large aggregates and the large wood blocks are prevented from affecting the fluidity of the fluid backfill.

2) Be equipped with the scale mark on the storage hopper, can guarantee that the volume of the material of every turn detection is equal, the horizontal contrast of mobility between the different materials of being convenient for.

3) The switch valve can close or open the channel between the storage hopper and the blanking groove, so that the starting time of falling is conveniently controlled.

4) The unloading groove downward sloping sets up, can reduce the speed that the material falls through the buffering of certain length on the one hand, guarantees the misce bene of material, and on the other hand can make the material be parabolic angle and fall into the flow groove, more is close to engineering service scenario for testing result has reference value more.

5) The flow groove is in a strip shape and is closer to a narrow construction scene; the side plates of the flow groove are detachable, so that materials can be conveniently taken out after being hardened in the flow groove, layering and bleeding of the materials are observed from the hardened state of the materials, and recycling of the flow groove after hardened backfill is conveniently taken out.

6) The method can realize the detection of the flowing speed, the flowing distance and the flowing state of the flowing backfill, better embody the working performance of the flowing backfill, and effectively ensure the construction efficiency and the construction effect of the flowing backfill.

7) By observing the state of the cross section of the hardened backfill, the problems of segregation, layering and the like in the backfill process are effectively avoided, the backfill quality of the fluid backfill and the compactness of the backfill are ensured, the risks of settlement, water seepage and the like of a foundation pit of a later-stage engineering are reduced, and the method has important guiding significance on performance analysis and construction of the fluid backfill.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

The reference numerals in the drawings are in turn: 1. the device comprises a storage hopper 11, a discharging groove 12, a switching valve 2, a sieve plate 3 and a flowing groove.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

Referring to fig. 1, an improvement of a fluid backfill flow detection device is that: the automatic feeding device comprises a storage hopper 1, wherein the size of an upper port of the storage hopper 1 is larger than that of a lower port of the storage hopper 1, and scale marks are arranged on the storage hopper 1; the upper port of the storage hopper 1 is provided with a screen plate 2, a plurality of screen holes which are uniformly distributed are formed in the screen plate 2, and the distribution range of the screen holes is matched with the upper port of the storage hopper 1; a lower trough 11 communicated with the storage hopper 1 is arranged at the bottom end of the storage hopper 1, the lower trough 11 is arranged in a downward inclined mode, and a switch valve 12 is arranged at the lower port of the storage hopper 1 or at the upper port of the lower trough 11; the lower part of the blanking groove 11 is provided with a flow groove 3, the flow groove 3 is strip-shaped and is matched with the lower port of the blanking groove 11 in position, the lower end surface of the blanking groove 11 is separated from the inner bottom surface of the flow groove 3 by a preset distance, and at least two side plates of the flow groove 3 are detachable.

In this embodiment, when the fluidity of the fluid backfill is detected, the storage hopper 1 is fixed on the support platform and placed vertically, the screen plate 2 is placed on the upper end surface of the storage hopper 1, or the screen plate 2 is suspended above the storage hopper 1, the backfill is poured into the storage hopper 1 from above the screen plate 2, the switch valve 12 is opened, and the material flows into the flow groove 3 below from the inclined blanking groove 11 under the action of gravity. Measuring the time of material flow in the storage hopper 1 through a stopwatch to represent the flow speed of the fluid backfill; and measuring the length of the flowing state backfill material flowing into the strip-shaped flowing groove 3 to represent the flowing distance of the flowing state backfill material; observing the uniformity and segregation layering state of the section of the hardened fluid backfill material to represent the flowing state of the fluid backfill material; and comprehensively judging the fluidity of the fluid backfill material through the flow speed, the flow distance and the flow state of the fluid backfill material.

In this embodiment, be equipped with a plurality of sieve meshes of evenly arranging on the sieve 2, can filter big granule materials such as big aggregate and big wood piece in the material, prevent that big aggregate and big wood piece from influencing the mobility of flow state backfill. Be equipped with the scale mark on the storage hopper 1, can guarantee that the volume of the material of every turn detection equals, the horizontal contrast of mobility between the different materials of being convenient for. The switch valve 12 can close or open the passage between the storage hopper 1 and the discharge chute 11, so as to control the start time of the falling. The blanking groove 11 is arranged in a downward inclined mode, on one hand, the falling speed of materials can be reduced through buffering of a certain length, the mixing uniformity of the materials is guaranteed, on the other hand, the materials can fall into the flowing groove 3 in a parabolic angle, the situation is closer to engineering use situations, and the detection result has a reference value. The flow groove 3 is in a strip shape and is closer to a narrow construction scene; the side plates of the flow groove 3 are detachable, so that materials can be conveniently taken out after being hardened in the flow groove 3, layering and bleeding of the materials are observed from the hardened state of the materials, and recycling of the flow groove 3 after hardened backfilling is conveniently achieved.

The flow state backfill fluidity detection device provided by the embodiment can realize the detection of the flow speed, the flow distance and the flow state of the flow backfill, better embody the working performance of the flow backfill and effectively ensure the construction efficiency and the construction effect of the flow backfill; by observing the state of the cross section of the hardened backfill, the problems of segregation, layering and the like in the backfill process are effectively avoided, the backfill quality of the fluid backfill and the compactness of the backfill are ensured, the risks of settlement, water seepage and the like of a foundation pit of a later-stage engineering are reduced, and the method has important guiding significance on performance analysis and construction of the fluid backfill.

Further, the storage hopper 1 is in an inverted cone shape.

Further, the upper port diameter of the storage hopper 1 is 25cm, and the lower port diameter is 3cm.

Further, the screen holes on the screen plate 2 are square screen holes, and the side length of each screen hole is 25mm.

Further, the length of the discharging groove 11 is 30cm.

Further, the inclination angle of the discharging groove 11 with respect to the horizontal plane is 45 °.

Further, the height of the flow groove 3 is 15cm, the length is 50cm, and the width is 10cm.

Further, the interval between the lower end surface of the lower trough 11 and the inner bottom surface of the flow trough 3 is 30cm.

Further, the flow groove 3 is made of transparent material.

In this embodiment, the appearance of the flow groove 3 is transparent, so that the flow distance of the backfill is more convenient to measure, and the segregation and layering states of the cured backfill are more convenient to observe.

It should be noted that the foregoing detailed description is exemplary and is intended to provide further explanation of the utility model. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly indicates otherwise. Furthermore, it will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, steps, operations, devices, components, and/or groups thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or otherwise described herein.

Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those elements but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways, such as rotated 90 degrees or at other orientations, and the spatially relative descriptors used herein interpreted accordingly.

In the above detailed description, reference is made to the accompanying drawings, which form a part hereof. In the drawings, like numerals typically identify like components unless context indicates otherwise. The illustrated embodiments described in the detailed description, drawings, and claims are not meant to be limiting. Other embodiments may be utilized, and other changes may be made, without departing from the spirit or scope of the subject matter presented herein.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (9)

1. The utility model provides a flow state backfill mobility detection device which characterized in that: the automatic feeding device comprises a storage hopper (1), wherein the size of an upper port of the storage hopper (1) is larger than that of a lower port of the storage hopper, and scale marks are arranged on the storage hopper (1); the upper port of the storage hopper (1) is provided with a screen plate (2), a plurality of screen holes which are uniformly distributed are formed in the screen plate (2), and the distribution range of the screen holes is matched with the upper port of the storage hopper (1); the bottom end of the storage hopper (1) is provided with a discharging groove (11) communicated with the storage hopper (1), the discharging groove (11) is arranged in a downward inclined mode, and a switch valve (12) is arranged at the lower port of the storage hopper (1) or at the upper port of the discharging groove (11); the lower part of the blanking groove (11) is provided with a flow groove (3), the flow groove (3) is strip-shaped and is matched with a lower port of the blanking groove (11), a preset distance is reserved between the lower end face of the blanking groove (11) and the inner bottom face of the flow groove (3), and at least two side plates of the flow groove (3) are detachable.

2. A fluid backfill flow detection device as defined in claim 1, wherein: the storage hopper (1) is in an inverted cone shape.

3. A fluid backfill flow detection device as defined in claim 2, wherein: the diameter of the upper port of the storage hopper (1) is 25cm, and the diameter of the lower port is 3cm.

4. A fluid backfill flow detection device as defined in claim 1, wherein: the sieve holes on the sieve plate (2) are square sieve holes, and the side length of each sieve hole is 25mm.

5. A fluid backfill flow detection device as defined in claim 1, wherein: the length of the discharging groove (11) is 30cm.

6. A fluid backfill flow detection device as defined in claim 1, wherein: the inclined angle between the discharging groove (11) and the horizontal plane is 45 degrees.

7. A fluid backfill flow detection device as defined in claim 1, wherein: the height of the flow groove (3) is 15cm, the length is 50cm, and the width is 10cm.

8. A fluid backfill flow detection device as defined in claim 1, wherein: the distance between the lower end surface of the discharging groove (11) and the inner bottom surface of the flowing groove (3) is 30cm.

9. A fluid backfill flow detection device as defined in claim 1, wherein: the flow groove (3) is made of transparent materials.

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