A mortar tank for a shotcrete process

Abstract

The utility model discloses a mortar tank for mortar spraying process, including tank structure, the upper end of tank structure is the opening, screening structure, screening structure can axial displacement be installed in opening, drive structure, drive structure passes screening structure and installs, scraper part, scraper part passes drive structure and drives, and revolves in screening structure, and the cement mortar of the particle size of falling into screening structure is scraped down into tank structure, stirring part, stirring part passes drive structure and drives, and revolves in tank structure, and the cement mortar of being located in tank structure is stirred, this device can store mortar while, complete the separation of coarse particle in mortar.

Description

Technical Field

[0001] This utility model relates to a mortar tank for spray mortar process. Background Technology

[0002] Shotcrete is a technology that uses high-pressure equipment to spray mortar mixture onto the construction surface at high speed. It is widely used in construction, tunnels, slope protection and other engineering projects.

[0003] During the implementation of the shotcrete process, the prepared mortar needs to be stored in a storage tank and continuously stirred to prevent the mortar from separating.

[0004] Existing storage tanks can perform agitation, but they do not have the ability to separate substances.

[0005] Quartz sand constitutes the majority of the raw materials used in mortar preparation. Coarse-grained quartz sand can cause clogging of the nozzle and exacerbate the wear of the mortar pump.

[0006] To address this, we designed a mortar storage tank for shotcrete processes that can separate coarse particles from mortar while storing it. Utility Model Content

[0007] The technical problem to be solved by this utility model is to provide a mortar tank that can separate coarse particles in mortar and spray mortar while storing mortar.

[0008] To solve the above problems, the present invention adopts the following technical solution:

[0009] A mortar container for shotcrete processing includes,

[0010] The material tank structure has an opening at its upper end;

[0011] A screening structure, which is axially displaceable and installed within the opening;

[0012] A drive structure, which is mounted via the screening structure;

[0013] The scraper section is driven by the drive structure and rotates within the screening structure to scrape qualified cement mortar falling into the screening structure downwards into the material tank structure.

[0014] The mixing section is driven by the drive structure and rotates within the tank structure to mix the cement mortar located within the tank structure.

[0015] Preferably, the tank structure includes a tank body, the lower part of which is hemispherical, and a discharge valve is vertically arranged at the bottom axis of the hemispherical shape. An outer frame is fixed on the outside of the tank body, and the tank body is lifted off the ground under the support of the outer frame. The screening structure is inserted from the top of the tank body and can be displaced along the axial direction of the tank body. Two hydraulic support rods are symmetrically arranged on the top of the outer frame to support the screening structure.

[0016] Preferably, the screening structure includes a screening tank with a small-diameter section machined at the bottom. The small-diameter section is coaxial with the tank body and inserted downward into the tank body. A sealing ring is fitted on the outside of the small-diameter section, forming a seal between the sealing ring and the inner wall of the tank body. An outer support is welded to the outside of the screening tank, and the telescopic end of the hydraulic support rod is fixed to the outer support. A top cover is detachably installed at the upper end of the screening tank. An inner container is sandwiched between the screening tank and the top cover. A flushing pipe and a drain pipe are provided on the outside of the inner container. The flushing pipe and the drain pipe are on the same diameter line of the inner container and both extend outward to the outside of the screening tank. Valves are installed on both the flushing pipe and the drain pipe. A convex shaft tube is provided at the axis of the inner container. Multiple metal filter screens are distributed in a ring at the bottom of the inner container. The scraper rotates coaxially inside the inner container. A pumping pipe corresponding to the inner container is provided at the top of the top cover, and the finished cement mortar is pumped into the inner container through the pumping pipe.

[0017] Preferably, the metal filter screen is fan-shaped with a pore size of 0.6mm to 1.2mm.

[0018] Preferably, the drive structure includes an upper bracket, a reducer, and a drive motor. The upper bracket is fixedly installed on the top of the top cover, the reducer is fixed to the upper bracket, the drive motor is installed at the input end of the reducer, and a drive shaft is installed at the output end of the reducer. Multiple bearings are fitted between the drive shaft and the top cover. The drive shaft passes downward through the shaft tube and extends downward into the tank body. Both the scraper section and the stirring section are driven by the drive shaft.

[0019] Preferably, the scraper portion includes a connecting sleeve and a scraper fixed to the outside of the connecting sleeve, with the scraper extending downward to a distance of 0.2mm to 0.3mm from the upper surface of the metal filter screen; the connecting sleeve is sleeved on the drive shaft and fixed to the drive shaft, and the connecting sleeve is located above the shaft tube.

[0020] Preferably, the stirring part includes an arc-shaped stirring rod, the center of which is located on the axis of the drive shaft, and a connecting rod is welded between the stirring rod and the drive shaft; when the hydraulic support rod retracts to its limit position, the distance between the stirring rod and the bottom surface of the tank is less than 1 mm.

[0021] The beneficial effects of this utility model are:

[0022] In this technical solution, the prepared mortar first enters the inner container. The rotation of the scraper drives the mortar material to be stirred, and the coarse particles in the mortar are screened out to prevent them from entering the tank for storage, thus avoiding the clogging of the nozzle and reducing the wear of the mortar pump. Secondly, after the spraying construction is completed, the intercepted coarse particles can be flushed out by rinsing, which is simple and convenient to operate and suitable for widespread use. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 A schematic diagram showing the division of the scraper section and the stirring section;

[0026] Figure 3 This is a schematic diagram of the material tank structure;

[0027] Figure 4 This is a cross-sectional view of the sieve structure;

[0028] Figure 5 This is a top view of the inner container;

[0029] Figure 6 This is a structural diagram of the stirring section.

[0030] Figure reference numerals:

[0031] Material tank structure 1, tank body 11, discharge valve 12, outer frame 13, hydraulic support rod 14, screening structure 2, screening tank 21, small diameter section 22, sealing ring 23, outer support 24, top cover 25, inner container 26, flushing pipe 261, drain pipe 262, valve 263, shaft tube 264, metal filter screen 265, pump material pipe 27, drive structure 3, upper support 31, reducer 32, drive motor 33, drive shaft 34, scraper section 4, connecting sleeve 41, scraper 42, stirring section 5, stirring rod 51, connecting rod 52. Detailed Implementation

[0032] All features disclosed in this specification, or steps in all methods or processes disclosed herein, may be combined in any way, except for mutually exclusive features and / or steps.

[0033] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0034] In the description of this utility model, it should be understood that the terms "one end", "the other end", "outer side", "upper", "inner side", "horizontal", "coaxial", "center", "end", "length", "outer end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] Furthermore, in the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] In this utility model, unless otherwise explicitly specified and limited, the terms "set," "socket," "connect," "through," and "plug-in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] See Figure 1 The mortar tank shown is for use in shotcrete processes and includes,

[0038] The material tank structure 1 has an opening at its upper end;

[0039] Screening structure 2, which is axially displaceable and installed within the opening;

[0040] Drive structure 3, which is installed via the screening structure 2;

[0041] Scraper section 4, driven by the drive structure 3, rotates within the screening structure 2, scraping qualified cement mortar falling into the screening structure downwards into the material tank structure 1.

[0042] The stirring unit 5 is driven by the driving structure 3 and rotates within the material tank structure 1 to stir the cement mortar located within the material tank structure 1.

[0043] See Figure 3 As shown, the material tank structure 1 includes a tank body 11, the lower part of which is hemispherical. A discharge valve 12 is vertically arranged at the bottom axis of the hemispherical shape. An outer frame 13 is fixed on the outside of the tank body 11. With the support of the outer frame 13, the tank body 11 is lifted off the ground. The screening structure 2 is inserted from the upper end of the tank body 11 and can be displaced along the axial direction of the tank body 11. Two hydraulic support rods 14 are symmetrically arranged on the top of the outer frame 13, and the screening structure 2 is supported by the hydraulic support rods 14.

[0044] The discharge valve 12 can be a pneumatic butterfly valve.

[0045] The hydraulic strut 14 is selected with a displacement sensor to realize closed-loop control of the lifting position and avoid overtravel. If necessary, a limit switch can also be installed. After the hydraulic strut 14 moves to the position, the limit switch is triggered to avoid the technical problem of overtravel.

[0046] See Figure 4 and Figure 5 As shown, the screening structure 2 includes a screening tank 21. A small-diameter portion 22 is machined at the bottom of the screening tank 21. The small-diameter portion 22 is coaxial with the tank body 11 and inserted downwards into the tank body 11. A sealing ring 23 is fitted onto the outside of the small-diameter portion 22, forming a seal between the sealing ring 23 and the inner wall of the tank body 11. An outer support 24 is welded to the outside of the screening tank 21, and the telescopic end of the hydraulic support rod 14 is fixed to the outer support 24. A top cover 25 is detachably installed at the upper end of the screening tank 21. An inner container 26 is sandwiched between the screening tank 21 and the top cover 25, and a flushing pipe 26 is provided on the outside of the inner container 26. The flushing pipe 261 and the drain pipe 262 are located on the same diameter line of the inner container 26 and both extend outward to the outside of the screening tank 21. Valves 263 are installed on both the flushing pipe 261 and the drain pipe 262. A convex shaft tube 264 is provided at the axis of the inner container 26. Multiple metal filter screens 265 are distributed in a ring at the bottom of the inner container 26. The scraper part 4 rotates coaxially inside the inner container 26. A pumping pipe 27 corresponding to the inner container 26 is provided on the top of the top cover 25. The finished cement mortar is pumped into the inner container 26 through the pumping pipe 27.

[0047] See Figure 5 As shown, the metal filter 265 is fan-shaped with a filter hole size of 0.6mm to 1.2mm.

[0048] In the above technical solution, when feeding through the pump pipe 27, the drive structure 3 is started simultaneously. The drive structure 3 drives the scraper section 4 to rotate, and the mortar material enters into the inner container 26. The scraper section 4 agitates the material, and large particles are intercepted at the top of the metal filter screen 265, while particles of the correct size pass through the metal filter screen 265 and are stored in the tank 11, where they are continuously agitated by the stirring section 5.

[0049] Cement mortar is stored inside tank 11 and pumped out by a material pump, and then sprayed until all the cement mortar in tank 11 is used up.

[0050] At this time, close the discharge valve 12, open the flushing pipe 261 and the drain pipe 262, and high-pressure water enters from the flushing pipe 261, flushing out the large particles intercepted by the metal filter 265 from the drain pipe 262. Some water passes through the metal filter 265 and enters the tank 11 to perform immersion cleaning of the tank 11. The water flow is driven by the stirring part 5 to complete the cleaning of the tank 11. After cleaning, open the discharge valve 12 to drain the water.

[0051] The metal filter 265 is made of 304 stainless steel.

[0052] See Figure 4 As shown, the drive structure 3 includes an upper bracket 31, a reducer 32, and a drive motor 33. The upper bracket 31 is fixedly installed on the top of the top cover 25. The reducer 32 is fixed to the upper bracket 31. The drive motor 33 is installed at the input end of the reducer 32. A drive shaft 34 is installed at the output end of the reducer 32. Multiple bearings are fitted between the drive shaft 34 and the top cover 25. The drive shaft 34 passes downward through the shaft tube 264 and extends downward into the tank body 11. The scraper part 4 and the stirring part 5 are both driven by the drive shaft 34.

[0053] The drive motor 33 is a variable frequency motor with a power of 5.5kW, and is equipped with a vector frequency converter (not shown).

[0054] The reducer 32 uses a planetary gear reducer with a speed ratio of 1:30 and overload protection.

[0055] See Figure 4 As shown, the scraper part 4 includes a connecting sleeve 41 and a scraper 42 fixed to the outside of the connecting sleeve 41. The scraper 42 extends downward and is 0.2mm to 0.3mm away from the upper surface of the metal filter screen 265. The connecting sleeve 41 is sleeved on the drive shaft 34 and fixed to the drive shaft 34. The connecting sleeve 41 is located above the shaft tube 264.

[0056] See Figure 6As shown, the stirring part 5 includes an arc-shaped stirring rod 51, the center of which is located on the axis of the drive shaft 34, and a connecting rod 52 is welded between the stirring rod 51 and the drive shaft 34; when the hydraulic support rod 14 retracts to its limit position, the distance between the stirring rod 51 and the bottom surface of the tank 11 is less than 1 mm.

[0057] By extending and retracting the hydraulic strut 14, the stirring rod 51 can be driven to achieve a short-distance axial displacement, thereby changing the stirring height.

[0058] Especially when cleaning the mortar that has settled at the bottom in the later stage, the inner wall of the tank 11 can be cleaned by lowering the height of the stirring rod 51.

[0059] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0060] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0061] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0062] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0063] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0064] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A mortar container for shotcrete processing, characterized in that: include, The material tank structure (1) has an opening at its upper end; A screening structure (2) is axially displaceable and installed within the opening; A drive structure (3) is mounted via the screening structure (2); The scraper section (4) is driven by the drive structure (3) and rotates within the screening structure (2) to scrape the qualified cement mortar falling into the screening structure downward into the material tank structure (1). The stirring part (5) is driven by the driving structure (3) and rotates in the tank structure (1) to stir the cement mortar located in the tank structure (1).

2. The mortar tank for the shotcrete process according to claim 1, characterized in that: The material tank structure (1) includes a tank body (11), the lower part of which is hemispherical. A discharge valve (12) is vertically arranged at the bottom axis of the hemispherical shape. An outer frame (13) is fixed on the outside of the tank body (11). With the support of the outer frame (13), the tank body (11) is lifted off the ground. The screening structure (2) is inserted from the upper end of the tank body (11) and can be displaced along the axial direction of the tank body (11). Two hydraulic support rods (14) are symmetrically arranged on the top of the outer frame (13) to support the screening structure (2).

3. The mortar tank for the shotcrete process according to claim 2, characterized in that: The screening structure (2) includes a screening tank (21). The bottom of the screening tank (21) is machined with a small diameter portion (22). The small diameter portion (22) is coaxial with the tank body (11) and inserted downward into the tank body (11). A sealing ring (23) is fitted on the outside of the small diameter portion (22). The sealing ring (23) forms a seal with the inner wall of the tank body (11). An outer support (24) is welded to the outside of the screening tank (21). The telescopic end of the hydraulic support rod (14) is fixed to the outer support (24). A top cover (25) is detachably installed on the upper end of the screening tank (21). An inner container (26) is sandwiched between the screening tank (21) and the top cover (25). A flushing pipe (26) is provided on the outside of the inner container (26). 1) and drain pipe (262), the flushing pipe (261) and drain pipe (262) are on the same diameter line of the inner container (26) and both extend outward to the outside of the screening tank (21). Valves (263) are installed on the flushing pipe (261) and the drain pipe (262). A convex shaft tube (264) is provided at the axis of the inner container (26). Multiple metal filter screens (265) are distributed in a ring at the bottom of the inner container (26). The scraper part (4) rotates coaxially inside the inner container (26). A pumping pipe (27) corresponding to the inner container (26) is provided on the top of the top cover (25). The finished cement mortar is pumped into the inner container (26) through the pumping pipe (27).

4. The mortar tank for the shotcrete process according to claim 3, characterized in that: The metal filter (265) is fan-shaped with a filter hole size of 0.6mm to 1.2mm.

5. The mortar tank for the shotcrete process according to claim 3, characterized in that: The drive structure (3) includes an upper bracket (31), a reducer (32) and a drive motor (33). The upper bracket (31) is fixedly installed on the top of the top cover (25). The reducer (32) is fixed to the upper bracket (31). The drive motor (33) is installed at the input end of the reducer (32). The output end of the reducer (32) is equipped with a drive shaft (34). Multiple bearings are fitted between the drive shaft (34) and the top cover (25). The drive shaft (34) passes downward through the shaft tube (264) and extends downward into the tank body (11). The scraper part (4) and the stirring part (5) are both driven by the drive shaft (34).

6. The mortar tank for the shotcrete process according to claim 5, characterized in that: The scraper section (4) includes a connecting sleeve (41) and a scraper (42) fixed to the outside of the connecting sleeve (41). The scraper (42) extends downward and is 0.2 mm to 0.3 mm away from the upper surface of the metal filter screen (265). The connecting sleeve (41) is sleeved on the drive shaft (34) and fixed to the drive shaft (34). The connecting sleeve (41) is located above the shaft tube (264).

7. The mortar tank for shotcrete process according to claim 5, characterized in that: The stirring part (5) includes an arc-shaped stirring rod (51), the center of which is located on the axis of the drive shaft (34), and a connecting rod (52) is welded between the stirring rod (51) and the drive shaft (34); when the hydraulic support rod (14) retracts to its limit position, the distance between the stirring rod (51) and the bottom surface of the tank (11) is less than 1 mm.

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