Air-conveying powder sampling device for high-pigment special carbon black production process

Abstract

The utility model discloses a pneumatic powder sampling device for a high-pigment special carbon black production process, relates to the technical field of powder sampling, and mainly aims to clean and sample powder in the process of pneumatic powder conveying. According to the main technical scheme, the pneumatic powder sampling device for the high-pigment special carbon black production process comprises a baffle pipe and a material receiving bin, the baffle pipe comprises a plurality of bent pipes and a plurality of vertical pipes which are alternately connected, the plurality of vertical pipes are sequentially and horizontally arranged, the bent pipe connected with the lower ends of the two adjacent vertical pipes is a lower end bent pipe, the inlet end of the baffle pipe is connected to an outlet pipe of a conveying fan, and the outlet end of the baffle pipe is connected to an inlet pipe of the conveying fan; the top wall of the material receiving bin is connected to the middles of the multiple lower end bent pipes.

Description

Technical Field

[0001] The utility model relates to the technical field of powder sampling, in particular to a pneumatic powder sampling device for a high-pigment special carbon black production process. Background Art

[0002] During the pneumatic conveying of powders, it is necessary to extract the powder being conveyed from the pneumatic conveying device for testing. Currently, there are two main methods for sampling powder for testing: one is to use a fan at the fan outlet to separate the conveying gas and the conveyed powder through a bag filter. The fan's negative pressure then sucks the separated conveying gas, which is then collected by a bag. However, this method can cause the conveying gas to escape from the bag with powder. The other method is to use an airtight valve to isolate the gas and sample at the discharge port of the airtight valve. This requires an extremely tight airtight valve, but an excessively tight valve can cause the valve to become stuck, especially when unloading powder in cold weather. If the valve is not airtight, it can easily cause system blowby, which not only hinders sampling but also causes dust to escape from the sampling port. Powder released by both methods generates dust, which affects environmental hygiene and poses certain safety and occupational health hazards. Utility Model Content

[0003] In view of this, the utility model provides a pneumatic powder sampling device for a high-pigment special carbon black production process, the main purpose of which is to cleanly sample the powder during the pneumatic conveying of the powder.

[0004] In order to achieve the above-mentioned purpose, the present invention mainly provides the following technical solutions:

[0005] The utility model provides a pneumatic powder sampling device for a high-pigment special carbon black production process, which comprises: a baffle pipe and a material receiving bin;

[0006] The baffle pipe includes a plurality of alternately connected bends and a plurality of vertical pipes, the plurality of vertical pipes are arranged horizontally in sequence, the bend pipe connecting the lower ends of two adjacent vertical pipes is a lower end bend pipe, the inlet end of the baffle pipe is connected to the outlet pipe of the conveying fan, and the outlet end of the baffle pipe is connected to the inlet pipe of the conveying fan;

[0007] The top walls of the material receiving bin are respectively connected to the middle parts of the plurality of lower end elbows.

[0008] The purpose of the present invention and the solution to its technical problems can be further achieved by adopting the following technical measures.

[0009] Optionally, a first control valve is installed at the inlet end of the deflector tube, and a second control valve is installed at the outlet end of the deflector tube.

[0010] Optionally, it also includes an exhaust pipe, one end of which is connected to the vertical pipe at the end of the deflector pipe, and the other end is connected to the air inlet of the bag collector, the air outlet of the bag collector is connected to the exhaust fan, and the exhaust pipe is installed with a third control valve.

[0011] Optionally, a displacement pipe is further included, one end of which is connected to the side wall of the inlet end of the deflector pipe, and the displacement pipe is installed with a fourth control valve.

[0012] Optionally, the other end of the replacement tube is connected to a rain cap.

[0013] Optionally, it also includes an excitation part, which includes a blower and multiple sleeves, each of the sleeves is sleeved on one of the vertical tubes, and the two adjacent sleeves are respectively the first sleeve and the second sleeve, the upper end of the first sleeve is connected to the lower end of the second sleeve, the inlet of the blower is connected to the lower end of the first sleeve, and the upper end of the last sleeve is provided with an exhaust port, and each of the sleeves has multiple annular partitions arranged axially, each of the annular partitions is provided with multiple through holes, and multiple excitation balls are movably arranged between the two adjacent annular partitions.

[0014] Optionally, a plurality of pits are evenly distributed on the surface of the vibration ball.

[0015] By means of the above technical solution, the present invention has at least the following advantages:

[0016] When the conveying fan is running online, a small amount of powder in the outlet pipe of the conveying fan enters the deflection pipe with the airflow. In the deflection pipe, the powder rubs against the inner wall of the vertical pipe, consuming the kinetic energy of the powder particles. After consuming the kinetic energy, the powder particles reach the lower end of the elbow. The powder particles in the middle of the lower end of the elbow settle into the receiving bin due to gravity, and the airflow returns to the inlet pipe of the conveying fan again.

[0017] The use of the above equipment can prevent dust from being compressed and escaping during the sampling process in the receiving silo, thereby preventing dust from being generated and affecting the environment, avoiding safety hazards and occupational health hazards, and achieving the purpose of clean powder sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A diagram of a pneumatic powder sampling device for a high-pigment specialty carbon black production process provided by an embodiment of the present utility model;

[0019] Figure 2 for Figure 1 Enlarged view of part A.

[0020] The figure marks in the drawings of the specification include: bent pipe 1, vertical pipe 2, conveying fan 3, outlet pipe 4, inlet pipe 5, material receiving bin 6, discharge valve 7, leakage pipe 8, first control valve 9, second control valve 10, exhaust pipe 11, bag dust collector 12, exhaust fan 13, third control valve 14, replacement pipe 15, fourth control valve 16, rain cap 17, blower 18, sleeve 19, exhaust port 20, annular partition 21, through hole 22, vibrating ball 23, pit 24, and ventilation pipe 25. DETAILED DESCRIPTION

[0021] To further illustrate the technical means and effects employed by this utility model to achieve its intended purpose, the following, in conjunction with the accompanying drawings and preferred embodiments, provides a detailed description of the specific implementation methods, structures, features, and effects of this utility model application. In the following description, different references to "one embodiment" or "embodiment" do not necessarily refer to the same embodiment. Furthermore, specific features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.

[0022] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0023] like Figure 1 As shown, an embodiment of the present invention provides a high-pigment specialty carbon black production process air-conveyed powder sampling device, which includes: a deflector tube and a material receiving bin 6;

[0024] The baffle pipe includes a plurality of alternately connected bends 1 and a plurality of vertical pipes 2. The plurality of vertical pipes 2 are arranged horizontally in sequence. The bend 1 connecting the lower ends of two adjacent vertical pipes 2 is the lower bend 1. The inlet end of the baffle pipe is connected to the outlet pipe 4 of the conveying fan 3, and the outlet end of the baffle pipe is connected to the inlet pipe 5 of the conveying fan 3.

[0025] The top walls of the material receiving bin 6 are respectively connected to the middle parts of the plurality of lower end elbows 1 .

[0026] The working process of a high-pigment specialty carbon black production process air-conveying powder sampling device is as follows:

[0027] When the conveying fan 3 is running online, a small amount of powder in the outlet pipe 4 of the conveying fan 3 enters the deflection pipe with the airflow. In the deflection pipe, the powder rubs against the inner wall of the vertical pipe 2, consuming the kinetic energy of the powder particles. After consuming the kinetic energy, the powder particles reach the lower end bend pipe 1. The powder particles in the middle of the lower end bend pipe 1 settle into the receiving bin 6 due to gravity, and the airflow returns to the inlet pipe 5 of the conveying fan 3 again.

[0028] By using the above-mentioned equipment, during the process of receiving and sampling materials in the receiving bin 6, the dust can be prevented from being pressurized and escaping, generating dust that affects the environment, and avoiding potential safety hazards and occupational health hazards, thereby achieving the purpose of clean powder sampling.

[0029] Specifically, a discharge valve 7 is installed at the lower end of the material receiving bin 6 .

[0030] Specifically, the top wall of the material receiving bin 6 is connected to the middle of the lower end elbow 1 through a leakage pipe 8.

[0031] In a specific embodiment, a first control valve 9 is installed at the inlet end of the baffle tube, and a second control valve 10 is installed at the outlet end of the baffle tube.

[0032] In this embodiment, specifically, when it is necessary to use this device to receive materials and take samples, the first control valve 9 and the second control valve 10 are opened synchronously, and the powder enters the receiving bin 6 along with the airflow, and the airflow flows back to the inlet pipe 5 of the conveying fan 3; when it is not necessary to use this device to receive materials and take samples, the first control valve 9 and the second control valve 10 are closed, and the deflector pipe and the inlet and outlet pipes 4 of the conveying fan 3 are isolated.

[0033] In a specific embodiment, it also includes an exhaust pipe 11, one end of the exhaust pipe 11 is connected to the vertical pipe 2 at the end of the deflector pipe, and the other end is connected to the air inlet of the bag collector 12, the air outlet of the bag collector 12 is connected to the exhaust fan 13, and the exhaust pipe 11 is installed with a third control valve 14.

[0034] In this embodiment, specifically, after the receiving bin 6 receives a certain amount of powder material, the first control valve 9 and the second control valve 10 are closed, and the third control valve 14 and the exhaust fan 13 are opened. Due to the suction action of the exhaust fan 13, the high-pressure gas in the deflection pipe and the receiving bin 6 passes through the exhaust pipe 11 and the bag dust collector 12 in turn, and at the same time, the powder particles discharged are intercepted by the filter bag to avoid environmental pollution; when the air pressure in the deflection pipe and the receiving bin 6 is balanced with the atmospheric pressure, the discharge valve 7 is opened to discharge the powder material in the receiving bin 6.

[0035] In a specific embodiment, a displacement pipe 15 is further included. One end of the displacement pipe 15 is connected to the side wall of the inlet end of the deflector pipe. The displacement pipe 15 is installed with a fourth control valve 16.

[0036] In this embodiment, specifically, after the receiving bin 6 receives a certain amount of powder material, the first control valve 9 and the second control valve 10 are closed, and the third control valve 14, the fourth control valve 16 and the exhaust fan 13 are opened. Due to the suction action of the exhaust fan 13, the high-pressure gas in the deflection pipe and the receiving bin 6 is discharged through the exhaust pipe 11. At the same time, the outside air replaces the flammable and explosive gases in the deflection pipe and the receiving bin 6 through the replacement pipe 15, thereby avoiding exceeding the standard of flammable and explosive gases in the receiving bin 6.

[0037] In a specific embodiment, the other end of the replacement tube 15 is connected to a rain cap 17 .

[0038] In this embodiment, specifically, the other end of the replacement tube 15 faces upward, and the rainproof cap 17 covers the other end of the replacement tube 15 to prevent external rainwater from entering the replacement tube 15 .

[0039] like Figure 1 and Figure 2 As shown, in a specific embodiment, it also includes an excitation part, which includes a blower 18 and a plurality of sleeves 19, each of the sleeves 19 is sleeved on one of the vertical tubes 2, and the two adjacent sleeves 19 are respectively the first sleeve 19 and the second sleeve 19, the upper end of the first sleeve 19 is connected to the lower end of the second sleeve 19, the inlet of the blower 18 is connected to the lower end of the first sleeve 19, and the upper end of the last sleeve 19 is provided with an exhaust port 20, and each of the sleeves 19 has a plurality of annular partitions 21 arranged axially, and each of the annular partitions 21 is evenly distributed with a plurality of through holes 22, and a plurality of excitation balls 23 are movably arranged between the two adjacent annular partitions 21.

[0040] In this embodiment, specifically, due to the drive of the blower 18, an airflow is generated, and the airflow flows through the through holes 22 of multiple annular partitions 21 between the sleeve 19 and the vertical tube 2 in sequence. The airflow drives the vibration ball 23 to oscillate irregularly between two adjacent annular partitions 21, and the oscillating vibration ball 23 hits the tube wall of the vertical tube 2, preventing powder particles from adhering to the inner wall of the vertical tube 2.

[0041] Specifically, the upper end of the first sleeve is connected to the lower end of the second sleeve through the vent pipe 25.

[0042] In a specific embodiment, a plurality of pits 24 are uniformly distributed on the surface of the vibration ball 23 .

[0043] In this embodiment, specifically, a plurality of pits 24 are evenly distributed on the surface of the excitation ball 23. When the airflow impacts the pits 24 on the surface of the excitation ball 23, the impact direction of the airflow on the surface of the excitation ball 23 can be made more irregular (the impact direction is more irregular relative to the diameter direction of the excitation ball 23), further improving the irregularity of the oscillation of the excitation ball 23, thereby increasing the irregularity of the direction of the impact force on the wall of the vertical tube 2, which is more conducive to preventing powder particles from adhering to the inner wall of the vertical tube 2.

[0044] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A pneumatic powder sampling device for a high-pigment specialty carbon black production process, characterized in that: include: A baffle pipe, the baffle pipe comprising a plurality of alternately connected bends and a plurality of vertical pipes, the plurality of vertical pipes being arranged horizontally in sequence, the bend connecting the lower ends of two adjacent vertical pipes being a lower bend, the inlet end of the baffle pipe being connected to the outlet pipe of the conveying fan, and the outlet end of the baffle pipe being connected to the inlet pipe of the conveying fan; A material receiving bin, the top wall of which is respectively connected to the middle parts of the plurality of lower end elbows.

2. The high-pigment specialty carbon black production process air-conveying powder sampling device according to claim 1 is characterized in that: A first control valve is installed at the inlet end of the baffle tube, and a second control valve is installed at the outlet end of the baffle tube.

3. The air-conveying powder sampling device for the production process of high-pigment specialty carbon black according to claim 2 is characterized in that: It also includes an exhaust pipe, one end of which is connected to the vertical pipe at the end of the deflector pipe, and the other end is connected to the air inlet of the bag filter. The air outlet of the bag filter is connected to the exhaust fan, and the exhaust pipe is installed with a third control valve.

4. The air-conveying powder sampling device for the production process of high-pigment specialty carbon black according to claim 3 is characterized in that: It also includes a displacement pipe, one end of which is connected to the side wall of the inlet end of the deflector pipe, and the displacement pipe is installed with a fourth control valve.

5. The air-conveying powder sampling device for the production process of high-pigment specialty carbon black according to claim 4 is characterized in that: The other end of the replacement tube is connected to the rainproof cap.

6. The air-conveying powder sampling device for the production process of high-pigment specialty carbon black according to any one of claims 1 to 5, characterized in that: It also includes an excitation part, which includes a blower and multiple sleeves. Each sleeve is sleeved on one of the vertical tubes. The two adjacent sleeves are respectively the first sleeve and the second sleeve. The upper end of the first sleeve is connected to the lower end of the second sleeve. The inlet of the blower is connected to the lower end of the first sleeve. The upper end of the last sleeve is provided with an exhaust port. Each sleeve has multiple annular partitions arranged axially, each of the annular partitions is provided with multiple through holes, and multiple excitation balls are movably arranged between the two adjacent annular partitions.

7. The air-conveying powder sampling device for the production process of high-pigment specialty carbon black according to claim 6, characterized in that: The surface of the excitation ball is uniformly distributed with a plurality of pits.

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