Cement pulp shooting machine

Abstract

The utility model discloses a cement pulp shooting machine, and relates to the technical field of building construction equipment, the cement pulp shooting machine comprises a charging barrel, an infusion pump, a conveying pipe, a material spraying assembly and a back flushing assembly, the charging barrel is used for storing cement pulp, and the charging barrel is provided with a discharging port; the liquid pump is mounted at the discharge hole and is used for pumping the cement slurry in the charging barrel; the conveying pipe is communicated with a liquid outlet of the infusion pump, and the conveying pipe is used for conveying cement slurry; the material spraying assembly is arranged at the end, away from the infusion pump, of the conveying pipe and used for spraying the cement slurry; and the reverse blowing assembly is arranged at the end, close to the spraying assembly, of the conveying pipe, the reverse blowing assembly communicates with the conveying pipe so as to convey airflow into the conveying pipe, and the conveying direction of the airflow is different from the conveying direction of the cement slurry. According to the technical scheme provided by the utility model, the problem that the cement slurry in the existing conveying pipe is easy to block is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building construction equipment, especially relates to a cement guniting machine. BACKGROUND

[0002] In the current field of building construction, the cement guniting machine as a commonly used construction equipment, its main function is to spray cement on the wall, tunnel, bridge and other building structures to achieve rapid and uniform construction effect. The cement guniting machine plays an important role in improving construction efficiency and ensuring engineering quality.

[0003] The existing cement guniting machine generally uses a conveying pipe to deliver cement slurry to a spray gun, thereby realizing spraying operation. In the construction process, due to the large solid particles in the cement slurry, it is easy to deposit in the conveying pipe, causing poor pipeline, especially in the elbow, joint and other parts of the conveying pipe, which is easy to produce burr due to wear, further aggravating the blockage phenomenon. SUMMARY

[0004] The main purpose of the utility model is to provide a cement guniting machine, which aims to solve the problem of easy blockage of cement slurry in the existing conveying pipe.

[0005] To achieve the above purpose, the cement guniting machine provided by the utility model comprises:

[0006] A barrel for storing cement slurry is provided with a discharge port;

[0007] A liquid pump is installed on the discharge port for extracting cement slurry in the barrel;

[0008] A conveying pipe is in communication with the liquid outlet of the liquid pump, and the conveying pipe is used for conveying cement slurry;

[0009] A material spraying assembly is arranged at one end of the conveying pipe away from the liquid pump for spraying cement slurry; and

[0010] A back blowing assembly is arranged at one end of the conveying pipe close to the material spraying assembly, the back blowing assembly is in communication with the conveying pipe to convey gas flow to the inside of the conveying pipe, and the conveying direction of the gas flow is different from the conveying direction of the cement slurry.

[0011] In an embodiment, the back blowing assembly comprises:

[0012] A gas blowing pipe is in communication with one end of the conveying pipe away from the barrel; and

[0013] A gas blowing joint is in communication with one end of the gas blowing pipe away from the conveying pipe.

[0014] In an embodiment, the back-blowing assembly further comprises a blowing fan, which is arranged at the connection between the blowing joint and the blowing pipe.

[0015] In an embodiment, the cement gun further comprises an air pump, which is arranged at one side of the barrel, and the blowing pipe is in communication with the air pump through an air supply pipe.

[0016] In an embodiment, the back-blowing assembly further comprises a pressure regulating valve, which is installed on the blowing pipe and located at the connection between the air supply pipe and the blowing pipe.

[0017] In an embodiment, the material spraying assembly comprises:

[0018] a spraying pipe, which is in communication with the conveying pipe at an end away from the barrel; and

[0019] a spraying head, which is in communication with the spraying pipe at an end away from the conveying pipe.

[0020] In an embodiment, the blowing pipe and the spraying pipe are both arranged to be inclined away from the axial direction of the conveying pipe, and the deviated direction of the blowing pipe is different from that of the spraying pipe.

[0021] In an embodiment, the cement gun further comprises a control valve, which is installed on the conveying pipe to adjust the flow rate of the cement slurry inside the conveying pipe.

[0022] In an embodiment, the cement gun further comprises a vibration exciting unit, which is arranged on the outer wall of the conveying pipe and used to vibrate the conveying pipe.

[0023] In an embodiment, the cement gun further comprises an agitator, which is arranged inside the barrel to agitate the cement slurry inside the barrel.

[0024] In an embodiment, the barrel has a coverable barrel cover, and the agitator comprises:

[0025] a impeller assembly, one end of which is installed on the barrel cover and the other end of which extends into the barrel; and

[0026] a servo motor, which is installed on the barrel cover and has an output shaft in driving connection with the impeller assembly.

[0027] The technical scheme of the utility model discloses a reverse blowing assembly is arranged on the one end of the conveying pipe close to the material spraying assembly, can convey airflow to the inside of the conveying pipe, and the movement direction of the airflow is different from the conveying direction of the cement slurry, so when the conveying pipe needs to be cleaned, only need to inject the airflow of opposite direction into the conveying pipe and blow the cement slurry reversely while conveying the cement slurry, the cement slurry in the conveying pipe will be subjected to the action of two different directions, after reciprocating for many times, the solid particles that can deposit on the inner wall of the conveying pipe can be effectively removed, and the blockage problem caused by the particle deposition can be prevented. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to the structure shown in the drawings without creating labor.

[0029] Figure 1 The structure schematic diagram of one embodiment of the cement spraying machine provided by the utility model is shown in the figure.

[0030] Figure 2 The structure schematic diagram of another embodiment of the cement spraying provided by the utility model is shown in the figure.

[0031] Figure 3 The partial structure schematic diagram of still another embodiment of the cement spraying machine provided by the utility model is shown in the figure.

[0032] EXPLANATION OF DRAWINGS:

[0033] 100, cement spraying machine, 1, barrel, 2, liquid pump, 3, conveying pipe, 4, material spraying assembly, 41, material spraying pipe, 42, spray head, 5, reverse blowing assembly, 51, air blowing pipe, 52, air blowing joint, 53, air blowing fan, 54, pressure regulating valve, 55, block cover, 6, air pump, 7, control valve, 8, air supply pipe.

[0034] The realization, functional characteristics and advantages of the utility model will be further explained by combining with the embodiments and referring to the drawings. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present utility model.

[0036] It should be noted that if the embodiments of the present utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture, and if the specific posture changes, the directional indications also change accordingly.

[0037] In addition, if the embodiments of the present utility model involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, "and / or" or "and / or" appearing throughout the text means that the three parallel solutions are included, for example, "A and / or B" includes A solution, or B solution, or A and B solutions. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0038] The existing cement spraying machine generally uses a conveying pipe to convey the cement slurry to a spray gun, thereby realizing spraying operation. In the construction process, since the solid particles in the cement slurry are relatively large, they are easy to deposit in the conveying pipe, causing poor pipeline, and especially burrs are easy to be generated due to abrasion at the elbow, joint and other parts of the conveying pipe, further aggravating the plugging phenomenon.

[0039] The present utility model provides a cement spraying machine.

[0040] Please refer to Figure 1 In an embodiment of the present utility model, the cement spraying machine 100 comprises:

[0041] A barrel 1 is used for storing cement slurry, and the barrel 1 is provided with a discharge port;

[0042] A liquid suction pump 2 is installed at the discharge port and is used for sucking the cement slurry in the barrel 1;

[0043] A conveying pipe 3 is communicated with the liquid outlet of the liquid suction pump 2, and the conveying pipe 3 is used for conveying the cement slurry;

[0044] The spraying assembly 4 is provided at the end of the delivery pipe 3 away from the liquid pump 2 and is used for spraying the cement slurry; and

[0045] The backflush assembly 5 is provided at one end of the delivery pipe 3 close to the spray assembly 4. The backflush assembly 5 is connected to the delivery pipe 3 to deliver airflow to the interior of the delivery pipe 3, and the delivery direction of the airflow is different from the delivery direction of the cement slurry.

[0046] The technical solution of the present invention is to provide a backflush assembly 5 at one end of the delivery pipe 3 near the spray assembly 4, thereby delivering an airflow into the delivery pipe 3, and the direction of the airflow is different from the delivery direction of the cement slurry. In this way, when the delivery pipe 3 needs to be cleaned, it is only necessary to inject an airflow in the opposite direction into the delivery pipe 3 while conveying the cement slurry to blow the cement slurry in the opposite direction. At this time, the cement slurry in the delivery pipe 3 will be subjected to forces in two different directions, left and right. After multiple reciprocating actions, it can effectively remove solid particles that may be deposited on the inner wall of the delivery pipe 3, preventing blockage problems caused by particle deposition. Because the backflush assembly 5 can promptly clean blockages in the delivery pipe 3, it reduces the downtime for cleaning caused by blockages, thereby significantly improving the operating efficiency of the spraying machine.

[0047] Specifically, the structure of the backflush assembly 5 is not specifically limited. For example, it can be configured as a trumpet at the connection with the delivery pipe 3 to expand the cross-sectional area of ​​the airflow, thereby increasing the force acting on the cement slurry. Furthermore, the backflush assembly 5 can be removably connected to the delivery pipe 3 using a snap-fit ​​or threaded connection, facilitating efficient assembly and disassembly. The shape of the barrel 1 is not specifically limited; for example, it can be cylindrical or cubic, as long as it has a storage space for the cement slurry. The liquid pump 2 can be a slurry pump or a centrifugal pump, as long as it has a pump body capable of pumping liquid. The material and length of the delivery pipe 3 are also not specifically limited. For example, it can be made of high-strength rubber or plastic (such as polytetrafluoroethylene or polystyrene rubber), and the length can be designed based on the actual construction site. The shape of the spray assembly 4 is not specifically limited; for example, it can be a spray gun or other high-strength nozzle 42, and can be selected based on actual needs. It should be noted that the spray assembly 4 can be removably connected to the delivery pipe 3 using a snap-fit ​​or threaded connection, facilitating efficient assembly and disassembly.

[0048] In the embodiments of the present invention, please refer to Figure 3 , the backflush assembly 5 includes:

[0049] The air blowing pipe 51 is connected to the end of the delivery pipe 3 away from the barrel 1; and

[0050] The air blowing connector 52 is connected to the end of the air blowing pipe 51 away from the delivery pipe 3 .

[0051] Specifically, the back flushing assembly 5 comprises a blowing pipe 51 and a blowing joint 52, the blowing joint 52 can be detachably connected with the blowing pipe 51 in a clamping or threaded connection manner, so as to facilitate efficient disassembly and replacement of the blowing joint 52 according to actual needs. The blowing joint 52 is provided, so that the operator can conveniently connect an external air source device (such as an air pump 6), and realize back flushing of the conveying pipe 3 by controlling the external air source device, thereby providing a stable air flow source in the blowing pipe 51. Further, the air flow is a high-pressure air flow. It is worth mentioning that a plug 55 can also be provided at the blowing joint 52, when it is not necessary to clean the blocked slurry in the conveying pipe 3, the plug 55 can also be fixedly arranged at the blowing joint 52 to block the passage in the blowing pipe 51, so as to facilitate the cement slurry in the conveying pipe 3 to be sprayed only from the material spraying assembly 4.

[0052] In the embodiment of the utility model, please refer to Figure 3 , the back flushing assembly 5 further comprises a blowing fan 53, the blowing fan 53 is arranged at the connection between the blowing joint 52 and the blowing pipe 51, the blowing fan 53 is arranged, can enhance the power of air flow, make back flushing effect more remarkable, effectively clean the blocking material in the conveying pipe 3. It can be understood that a micro motor can also be arranged inside the blowing joint 52, and the micro motor is used to drive the working of the blowing fan 53. The number of fan blades on the blowing fan 53 is not specifically limited, and can be selected and arranged according to actual conditions.

[0053] In the embodiment of the utility model, please refer to Figure 1 , the cement spraying machine 100 further comprises an air pump 6, the air pump 6 is arranged on one side of the barrel 1, and the blowing pipe 51 is communicated with the air pump 6 through a gas supply pipe 8. In the embodiment, the air pump 6 is arranged on one side of the barrel 1, so that the cement spraying machine 100 has an independent air supply system, does not need to rely on external air source equipment, widens the application range of the cement spraying machine 100, and can not be limited by the target spraying position. The air flow generated by the air pump 6 is conveyed to the blowing pipe 51 through the gas supply pipe 8, and then is blown into the conveying pipe 3 after being enhanced by the blowing fan 53, so as to provide stable and controllable air flow for the back flushing assembly 5. The independent arrangement of the air pump 6 makes the air supply system more safe, and avoids construction accidents caused by air source problems.

[0054] In the embodiment of the utility model, please refer to Figure 1The back-blowing assembly 5 also includes a pressure-regulating valve 54, which is installed on the air blowing pipe 51 and is located at the connection between the air supply pipe 8 and the air blowing pipe 51. The pressure-regulating valve 54 can be a pneumatic valve or an electric valve, etc., as long as it is a valve that can adjust the air flow pressure. The pressure-regulating valve 54 can accurately adjust the air flow pressure delivered from the air supply pipe 8 to the air blowing pipe 51, ensuring that the back-blowing force is moderate, and avoiding damage to the delivery pipe 3 or poor cleaning effect caused by excessively high or low pressure. In addition, the pressure-regulating valve 54 helps to maintain the stability of the pressure in the delivery pipe 3, reducing the impact and wear on the delivery pipe 3, thereby extending the service life of the delivery pipe 3 and the back-blowing assembly 5.

[0055] In the embodiments of the present invention, please refer to Figure 3 , the spraying assembly 4 includes:

[0056] The spraying pipe 41 is connected to the end of the delivery pipe 3 away from the barrel 1; and

[0057] The nozzle 42 is connected to the end of the spray pipe 41 away from the delivery pipe 3.

[0058] Specifically, the spray assembly 4 includes a spray pipe 41 and a spray head 42. The spray head 42 can be detachably connected to the spray pipe 41 using a snap-fit ​​or threaded connection, facilitating efficient assembly and disassembly and replacement of the spray head 42 as needed. The provision of the spray head 42 allows the operator to precisely control the spray direction and range of the cement slurry, thereby improving spray accuracy and construction quality. Alternatively, the spray head 42 can be an atomizing nozzle 42, allowing the slurry to be sprayed in a uniform atomized state, thereby avoiding uneven wall coating.

[0059] In the embodiments of the present invention, please refer to Figure 2 and Figure 3 The air blowing pipe 51 and the material spraying pipe 41 are both arranged axially away from the delivery pipe 3, and the deviation direction of the air blowing pipe 51 is different from the deviation direction of the material spraying pipe 41. For example, the air blowing pipe 51 is arranged above the delivery pipe 3, while the material spraying pipe 41 is arranged below the delivery pipe 3 and is arranged away from the air blowing pipe 51. In other words, the air blowing pipe 51 and the material spraying pipe 41 are not arranged parallel to each other in the same direction. This makes it easier to distinguish between the backflush assembly 5 and the material spraying assembly 4, so as to facilitate quick cleaning or material spraying.

[0060] In the embodiments of the present invention, please refer to Figures 1 to 3The cement spraying machine 100 further comprises a control valve 7 installed on the conveying pipe 3 to adjust the flow rate of the cement slurry inside the conveying pipe 3. The control valve 7 can be a pneumatic valve or an electric valve, as long as it is a valve capable of adjusting the flow rate of the liquid inside the conveying pipe 3. The flow rate of the slurry inside the conveying pipe 3 can be adjusted through the control valve 7 to adapt to different spraying processes and wall conditions, thereby optimizing the spraying effect and avoiding the problems of excessive spraying or insufficient spraying. Moreover, the control valve 7 can prevent the pipe pressure from being too high due to the too fast flow rate of the slurry, thereby reducing the risk of equipment failure and construction safety.

[0061] In the embodiment of the present application, the cement spraying machine 100 further comprises an excitation unit (not shown in the figure), which is arranged on the outer wall of the conveying pipe 3 and is used to vibrate the conveying pipe 3. The excitation unit can be a pipe vibrator or a vibration hammer, as long as it can effectively prevent the cement slurry from depositing in the conveying pipe 3 during the conveying process through vibration. The vibration of the excitation unit helps to reduce the adhesion of the cement slurry to the inner wall of the conveying pipe 3, thereby reducing the risk of blockage in the conveying pipe 3 and reducing the frequency of cleaning and maintenance.

[0062] In the embodiment of the present application, the cement spraying machine 100 further comprises a stirrer (not shown in the figure), which is arranged inside the barrel 1 to stir the cement slurry inside the barrel 1. By arranging the stirrer inside the barrel 1, the continuously stirred slurry is less likely to form lumps, which helps to maintain the fluidity of the cement slurry, makes the conveying process smoother, reduces the difficulty in conveying caused by the viscosity of the slurry, further reduces the risk of blockage in the conveying pipe 3, and reduces the number of stoppage for cleaning.

[0063] In the embodiment of the present application, the barrel 1 has a coverable barrel cover, and the stirrer comprises:

[0064] a impeller assembly, one end of the impeller assembly is installed on the barrel cover, and the other end of the impeller assembly extends into the interior of the barrel 1; and

[0065] a servo motor, which is installed on the barrel cover and has an output shaft drivingly connected with the impeller assembly.

[0066] Specifically, the barrel cover can be hingedly connected with the barrel body of the barrel 1 to ensure the openability of the barrel cover. The coverable barrel cover ensures the sealing during the storage of the slurry and prevents foreign matters from entering the barrel 1, thereby maintaining the purity of the slurry. In addition, the impeller assembly can comprise a stirring shaft and a plurality of stirring blades, and optionally, the plurality of stirring blades are arranged in a spiral shape on the outer wall of the stirring shaft. By directly installing the stirring shaft in the impeller assembly on the barrel cover and driving the stirring shaft to rotate by the servo motor, the stirring blades can efficiently stir the cement slurry inside the barrel 1, thereby ensuring the uniformity and consistency of the slurry.

[0067] The above merely illustrates the exemplary embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation or direct / indirect application in other related technical fields under the technical concept of the present application and by using the content of the present application specification and drawings are included in the patent protection scope of the present application.

Claims

1. A cement spraying machine, characterized in that: The cement spraying machine comprises: A barrel for storing cement slurry, wherein the barrel is provided with a discharge port; A liquid pump, installed at the discharge port, for extracting the cement slurry in the barrel; A delivery pipe, connected to the liquid outlet of the liquid pump, and used for delivering cement slurry; a spraying assembly, provided at one end of the delivery pipe away from the liquid pump, for spraying cement slurry; and A backflush assembly is provided at one end of the delivery pipe close to the spray assembly. The backflush assembly is connected to the delivery pipe to deliver airflow to the interior of the delivery pipe, and the delivery direction of the airflow is different from the delivery direction of the cement slurry.

2. The cement spraying machine according to claim 1, characterized in that The backflush assembly comprises: an air blowing pipe connected to an end of the delivery pipe away from the barrel; and The air blowing joint is connected to an end of the air blowing pipe away from the delivery pipe.

3. The cement spraying machine according to claim 2, characterized in that The back-blowing assembly further comprises an air blowing fan, which is arranged at the connection between the air blowing joint and the air blowing pipe.

4. The cement spraying machine according to claim 2, characterized in that The cement spraying machine also includes an air pump, which is arranged on one side of the barrel, and the air blowing pipe is connected to the air pump through an air supply pipe.

5. The cement spraying machine according to claim 4, characterized in that: The back-blowing assembly further comprises a pressure regulating valve, which is installed on the air blowing pipe and is located at the connection between the air supply pipe and the air blowing pipe.

6. The cement spraying machine according to claim 2, characterized in that: The spraying assembly comprises: a material spraying pipe connected to an end of the delivery pipe away from the barrel; and The nozzle is connected to the end of the spray pipe away from the delivery pipe.

7. The cement spraying machine according to claim 6, characterized in that: The air blowing pipe and the material spraying pipe are both arranged to be inclined away from the axial direction of the conveying pipe, and the deviation direction of the air blowing pipe is different from the deviation direction of the material spraying pipe.

8. The cement spraying machine according to claim 1, characterized in that: The cement spraying machine further includes a control valve installed on the delivery pipe to adjust the flow rate of the cement slurry inside the delivery pipe; and / or, The cement spraying machine further includes a vibration unit, which is arranged on the outer wall of the conveying pipe and is used to vibrate the conveying pipe.

9. The cement spraying machine according to any one of claims 1 to 8, characterized in that: The cement spraying machine further comprises a stirrer, which is arranged inside the barrel to stir the cement slurry inside the barrel.

10. The cement spraying machine according to claim 9, characterized in that: The barrel has a closable barrel cover, and the stirrer includes: an impeller assembly, one end of which is mounted on the barrel cover, and the other end of which extends into the interior of the barrel; and A servo motor is mounted on the cylinder cover, and an output shaft of the servo motor is drivingly connected to the impeller assembly.

Images