Well cementation cement truck dust purification equipment

Abstract

The utility model belongs to the technical field of dust purification equipment, and particularly relates to well cementation cement truck dust purification equipment which comprises a support, an L-shaped air inlet pipeline is fixedly connected to the top of the support, a negative pressure fan is fixedly connected to the interior of the air inlet pipeline, and a connecting pipeline is installed on the lower side wall of the air inlet pipeline. The bottom end of the air inlet pipeline is in threaded connection with a sealing cover, and a purification assembly is installed on the surface of the sealing cover. Dust is sucked into the air inlet pipeline through the negative pressure fan, when the dust flows in the air inlet pipeline, the dust is filtered through the filter hopper, and when a large amount of dust is collected in the filter hopper, the warning indicator is controlled to operate, and constructors are reminded to detach and clean the filter hopper in time. And the filter hopper can be cleaned in time when being blocked.

Description

Technical Field

[0001] The utility model relates to the technical field of dust purification equipment, in particular to dust purification equipment for a cementing truck. Background Art

[0002] Cementing trucks are common equipment in the oil field development stage. When using cementing trucks for cementing, the dry cement ash needs to be gasified and supplied to the cement truck through the ash supply pipeline. It is mixed with high-speed fluid in the cement truck's slurry mixing system. During the mixing process, a large amount of dust will diffuse out through the chimney of the cyclone funnel.

[0003] Cement contains a lot of substances that are harmful to the human body, and most of the dry ash is mixed with other cementing additive chemicals. Once these chemicals are inhaled, they will cause great harm to the human body. In addition, the dust of cement and additives spreads into the atmosphere, which will pollute the environment.

[0004] The existing Chinese patent with announcement number CN220071159U discloses a liftable negative pressure dust removal device for a cementing truck, including a negative pressure fan, a dust filtering system, a filter water tank and a variable bracket, the height of the variable bracket is adjustable, the filter water tank is fixed on the lower layer of the variable bracket, the negative pressure fan is fixed on the upper part of the variable bracket, and the negative pressure fan is connected to the filter water tank through the dust filtering system.

[0005] In view of the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: the device performs initial filtration of dust through dust bags, and the dust bags are installed inside the pipes, which are inconvenient to observe; when the dust bags are full, they cannot be disassembled and cleaned in time, which affects the cleaning effect of the dust bags and needs to be improved; therefore, a dust purification device for a cementing truck is proposed to address the above problems. Utility Model Content

[0006] In order to make up for the deficiencies of the prior art and solve the above-mentioned technical problems, the utility model provides a dust purification device for a cementing truck.

[0007] The technical solution adopted by the utility model to solve its technical problems is: a dust purification device for a cementing truck described in the utility model comprises a bracket, and universal wheels are fixedly connected to the four corners of the bottom of the bracket, an L-shaped air inlet duct is fixedly connected to the top of the bracket, a negative pressure fan is fixedly connected to the inside of the air inlet duct, a connecting pipe is installed on the lower side wall of the air inlet duct, a sealing cover is threadedly connected to the bottom end of the air inlet duct, a purification component is installed on the surface of the sealing cover, the purification component comprises a conical filter bucket with filter holes on the surface, a connecting ring is slidably connected to the bottom end of the filter bucket, the bottom end of the connecting ring is fixedly connected to the sealing cover, and the inside of the connecting ring is installed There are springs and pressure sensors, and the filter bucket is supported by the tension of the spring. The pressure sensor is fixedly connected to the sealing cover, and the pressure sensor is electrically connected to an alarm. When in use, the air inlet duct is connected to the chimney of the cement truck, and the negative pressure fan is operated to suck dust into the inside of the air inlet duct. When the dust flows inside the air inlet duct, the dust is filtered through the filter bucket. When more dust is filtered inside the filter bucket, the ventilation performance gradually decreases, and the filter bucket gradually decreases and squeezes the pressure sensor. When the detection value of the pressure sensor reaches a certain threshold, the alarm is controlled to run to remind the construction personnel to disassemble and clean the filter bucket in time. Compared with the existing technology, the filter bucket can be cleaned in time when it is blocked.

[0008] Preferably, the alarm is a buzzer or a warning light, and the alarm is fixedly mounted on the bottom of the sealing cover.

[0009] Preferably, the filter bucket comprises a ring body, a conical filter layer and a connecting seat which are connected in sequence, and the outer wall of the ring body fits the inner wall of the air inlet duct.

[0010] Preferably, the inner wall of the ring body can be fixedly connected to a dust filter bag that fits the filter layer, so that double filtration is performed through the dust filter bag and the filter layer. At the same time, the dust filter bag is supported by the filter layer to reduce the impact and pulling force from the flowing airflow and extend its service life.

[0011] Preferably, a water tank is fixedly connected below the bracket, a mixing assembly is installed inside the water tank, and one end of the connecting pipe passes through the water tank and extends to the inside.

[0012] Preferably, the mixing assembly includes a rotating head, which is rotatably installed inside the bottom end of the connecting pipe. A flow hole is opened at the bottom end of the rotating head. The filtered gas flows along the connecting pipe and the rotating head in turn and is discharged into the water, and the remaining dust is dissolved in the water to achieve a secondary filtration effect. When the gas flows, the rotating head is driven to rotate through cooperation with the impeller, so that the gas is rotated and ejected from the flow hole, thereby improving the dissolution effect of dust and water.

[0013] Preferably, an impeller is fixedly connected inside the rotating head.

[0014] Preferably, the mixing assembly further comprises a vertical baffle, and the vertical baffle is fixedly mounted inside the water tank.

[0015] Preferably, the mixing assembly also includes a plurality of side baffles distributed from top to bottom, wherein the side baffle on the left is fixedly connected to the water tank, and wherein the side baffle on the right is fixedly connected to the vertical baffle, and the gas inside the water tank is discharged from the gas adding outlet after mixing with the water, and through the cooperation of the side baffle and the vertical baffle, the flow time of the gas in the water is extended, thereby further improving the dissolution effect.

[0016] Preferably, the top of the water tank is provided with an air adding outlet, through which water can be added, the lower side wall of the water tank is provided with a liquid discharge end, and a cover body is threadedly connected to the liquid discharge end, and the cover body can be opened to discharge the water inside the water tank from the liquid discharge end.

[0017] The utility model is beneficial in that:

[0018] 1. The utility model uses a negative pressure fan to suck dust into the inside of the air inlet duct. When the dust flows inside the air inlet duct, it is filtered by the filter bucket. When a lot of dust is collected inside the filter bucket, the alarm is controlled to operate to remind construction personnel to disassemble and clean the filter bucket in time. Compared with the prior art, the filter bucket can be cleaned in time when it is blocked.

[0019] 2. The utility model discharges the filtered gas into water and dissolves the remaining dust in water to achieve the effect of secondary filtration. When the gas flows, it drives the rotating head to rotate through the cooperation with the impeller, so that the gas is rotated and ejected from the flow hole, thereby improving the dissolution effect of dust and water. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a cross-sectional view of the water tank and air inlet duct of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the purification component of the utility model;

[0024] Figure 4 This is an exploded view of the purification component of the utility model;

[0025] Figure 5 This is a cross-sectional view of the connecting pipe and the rotating head of the utility model.

[0026] In the figure: 1. bracket; 2. air inlet duct; 4. connecting duct; 5. sealing cover; 6. purification component; 62. filter bucket; 63. connecting ring; 64. spring; 65. pressure sensor; 66. alarm; 621. ring body; 622. filter layer; 623. connecting seat; 7. water tank; 8. mixing component; 81. rotating head; 82. flow hole; 83. impeller; 84. side baffle; 85. vertical baffle; 9. adding air outlet; 10. drain end. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Embodiment 1

[0029] See also Figure 1-4 As shown, a dust purification device for a cementing truck comprises a bracket 1, an L-shaped air inlet duct 2 is fixedly connected to the top of the bracket 1, a negative pressure fan is fixedly connected to the inside of the air inlet duct 2, a connecting pipe 4 is installed on the lower side wall of the air inlet duct 2, a sealing cover 5 is threadedly connected to the bottom end of the air inlet duct 2, a purification component 6 is installed on the surface of the sealing cover 5, the purification component 6 comprises a conical filter hopper 62 with filter holes on the surface, a connecting ring 63 is slidably connected to the bottom end of the filter hopper 62, the bottom end of the connecting ring 63 is fixedly connected to the sealing cover 5, a spring 64 and a pressure sensor 65 are installed inside the connecting ring 63, the filter hopper 62 is supported by the tension of the spring 64, and the pressure sensor 65 is provided. The device 65 is fixedly connected to the sealing cover 5, and the pressure sensor 65 is electrically connected to the alarm 66. When in use, the air inlet duct 2 is connected to the chimney of the cement truck, and the negative pressure fan is operated to suck the dust into the air inlet duct 2. When the dust flows inside the air inlet duct 2, the dust is filtered by the filter bucket 62. When a lot of dust is collected inside the filter bucket 62, the ventilation performance gradually decreases, and the filter bucket 62 will gradually decrease and squeeze the pressure sensor 65. When the detection value of the pressure sensor 65 reaches a certain threshold, the alarm 66 is controlled to run, reminding the construction personnel to disassemble and clean the filter bucket 62 in time. Compared with the prior art, the filter bucket 62 can be cleaned in time when it is blocked.

[0030] The warning device 66 is a buzzer or a warning light, and the warning device 66 is fixedly installed at the bottom of the sealing cover 5 .

[0031] The filter bucket 62 includes a ring body 621 , a conical filter layer 622 and a connecting seat 623 which are connected in sequence. The outer wall of the ring body 621 fits the inner wall of the air inlet duct 2 .

[0032] The inner wall of the ring body 621 can be fixedly connected with a dust filter bag that fits the filter layer 622. Double filtration is performed through the dust filter bag and the filter layer 622. At the same time, the dust filter bag is supported by the filter layer 622 to reduce the impact and pulling force from the flowing airflow and extend its service life.

[0033] Embodiment 2

[0034] For comparison with Example 1, please refer to Figure 5 As shown, the utility model provides another embodiment, a water tank 7 is fixedly connected to the bottom of the bracket 1, a mixing assembly 8 is installed inside the water tank 7, and one end of the connecting pipe 4 passes through the water tank 7 and extends to the inside.

[0035] The mixing assembly 8 includes a rotating head 81, which is rotatably installed inside the bottom end of the connecting pipe 4. A flow hole 82 is opened at the bottom end of the rotating head 81. The filtered gas flows along the connecting pipe 4 and the rotating head 81 in turn and is discharged into the water, so that the remaining dust is dissolved in the water to achieve a secondary filtration effect. When the gas flows, the rotating head 81 is driven to rotate through the cooperation with the impeller 83, so that the gas is rotated and ejected from the flow hole 82, thereby improving the dissolution effect of dust and water.

[0036] An impeller 83 is fixedly connected inside the rotating head 81 .

[0037] The mixing assembly 8 further includes a vertical baffle 85 , which is fixedly installed inside the water tank 7 .

[0038] The mixing assembly 8 also includes a plurality of side baffles 84 distributed from top to bottom, the left side baffle 84 is fixedly connected to the water tank 7, and the right side baffle 84 is fixedly connected to the vertical baffle 85. The gas inside the water tank 7 is discharged from the gas adding outlet 9 after mixing with water, and the cooperation of the side baffles 84 and the vertical baffles 85 prolongs the flow time of the gas in the water, further improving the dissolution effect.

[0039] The top of the water tank 7 is provided with an air adding outlet 9, through which water can be added to the inside of the water tank, and the water level is higher than the rotating head 81. The lower side wall of the water tank 7 is provided with a liquid discharge end 10, and a cover body is threadedly connected to the liquid discharge end 10. By opening the cover body, the water inside the water tank 7 can be discharged from the liquid discharge end 10.

[0040] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and according to the actual situation, a suitable controller should be selected to electrically connect with the pressure sensor 65 and the negative pressure fan to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and does not explain the electrical control.

[0041] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art.

[0042] Working principle: when in use, connect the air inlet duct 2 with the chimney of the cement truck, run the negative pressure fan, and suck the dust into the inside of the air inlet duct 2. When the dust flows inside the air inlet duct 2, it is filtered by the filter bucket 62. When a lot of dust is collected inside the filter bucket 62, the ventilation performance gradually decreases, and the filter bucket 62 will gradually decrease and squeeze the pressure sensor 65. When the detection value of the pressure sensor 65 reaches a certain threshold, the alarm 66 is controlled to run, reminding the construction personnel to disassemble and clean the filter bucket 62 in time.

[0043] The filtered gas flows along the connecting pipe 4 and the rotating head 81 into the water in turn, dissolving the remaining dust in the water to achieve the effect of secondary filtration. When the gas flows, it drives the rotating head 81 to rotate through the cooperation with the impeller 83, so that the gas is rotated and ejected from the flow hole 82, thereby improving the dissolution effect of dust and water.

[0044] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0045] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A dust purification device for a cementing truck, comprising a bracket (1), characterized in that: An L-shaped air inlet duct (2) is fixedly connected to the top of the bracket (1), a negative pressure fan is fixedly connected inside the air inlet duct (2), a connecting duct (4) is installed on the lower side wall of the air inlet duct (2), a sealing cover (5) is threadedly connected to the bottom end of the air inlet duct (2), a purification component (6) is installed on the surface of the sealing cover (5), and the purification component (6) comprises a conical filter bucket (62) with filter holes on the surface, a connecting ring (63) is slidably connected to the bottom end of the filter bucket (62), the bottom end of the connecting ring (63) is fixedly connected to the sealing cover (5), a spring (64) and a pressure sensor (65) are installed inside the connecting ring (63), the pressure sensor (65) is fixedly connected to the sealing cover (5), and the pressure sensor (65) is electrically connected to an alarm (66).

2. The dust purification equipment for cementing truck according to claim 1 is characterized in that: The warning device (66) is a buzzer or a warning light, and the warning device (66) is fixedly mounted on the bottom of the sealing cover (5).

3. The dust purification equipment for cementing truck according to claim 1 is characterized in that: The filter bucket (62) comprises a ring body (621), a conical filter layer (622) and a connecting seat (623) which are connected in sequence, and the outer wall of the ring body (621) fits the inner wall of the air inlet duct (2).

4. The dust purification equipment for cementing truck according to claim 3 is characterized in that: The inner wall of the ring body (621) may be fixedly connected with a dust removal filter bag that fits the filter layer (622).

5. The dust purification equipment for cementing truck according to claim 1 is characterized in that: A water tank (7) is fixedly connected below the bracket (1), a mixing assembly (8) is installed inside the water tank (7), and one end of the connecting pipe (4) passes through the water tank (7) and extends into the interior.

6. The dust purification equipment for cementing truck according to claim 5 is characterized in that: The mixing assembly (8) comprises a rotating head (81), which is rotatably mounted inside the bottom end of the connecting pipe (4), and a flow hole (82) is provided at the bottom end of the rotating head (81).

7. The dust purification equipment for cementing truck according to claim 6 is characterized in that: An impeller (83) is fixedly connected inside the rotating head (81).

8. The dust purification equipment for cementing truck according to claim 5 is characterized in that: The mixing assembly (8) further comprises a vertical baffle (85), wherein the vertical baffle (85) is fixedly mounted inside the water tank (7).

9. The dust purification equipment for cementing truck according to claim 8, characterized in that: The mixing assembly (8) further comprises a plurality of side baffles (84) distributed from top to bottom, wherein the side baffle (84) on the left side is fixedly connected to the water tank (7), and the side baffle (84) on the right side is fixedly connected to the vertical baffle (85).

10. The dust purification equipment for cementing truck according to claim 5, characterized in that: The top of the water tank (7) is provided with a gas adding outlet (9), the lower side wall of the water tank (7) is provided with a liquid discharge end (10), and a cover body is threadedly connected to the liquid discharge end (10).

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