Anti-blocking and flame-retardant type dust removal pipeline system for tensile specimen grinder

Abstract

The utility model discloses a kind of anti-clogging flame-retardant tensile sample grinding machine dust removal pipeline systems, belong to industrial dust removal technical field, including dust removal machine, dust removal pipeline connected between dust removal machine and tensile sample grinding machine;Dust removal pipeline includes the first dust removal sub-pipeline connected with dust removal machine, the second dust removal sub-pipeline connected with tensile sample grinding machine, the third dust removal sub-pipeline connected first dust removal sub-pipeline and second dust removal sub-pipeline;For monitoring the pressure data of dust removal pipeline inside pressure sensor;Spiral flow guide component is provided in dust removal pipeline;Pneumatic dust cleaning module is installed in the lateral wall of second dust removal sub-pipeline;One end of guide pressure pipe is from outside to inside and is penetrated into third dust removal sub-pipeline, and the other end of guide pressure pipe is butt joint with the sensitive probe of pressure sensor;The inner wall and outer wall of dust removal pipeline are provided with flame-retardant coating, and copper-plated ground rod is provided between the outer wall of dust removal pipeline and ground.The utility model can solve the technical problem that traditional plastic pipeline is easy to block, inflammable and explosive.

Description

Technical Field

[0001] This utility model belongs to the field of industrial dust removal technology, and in particular relates to a dust removal pipeline system for a tensile test specimen grinding machine that is anti-clogging and flame-retardant. Background Technology

[0002] During the operation of equipment such as tensile test specimen grinding machines, a large amount of metal dust is generated, thus requiring dust removal. Existing dust removal pipeline systems face three significant technical bottlenecks:

[0003] Material defects: Currently used plastic pipes are mainly made of polypropylene (PP), which is highly susceptible to oxidative degradation in environments filled with metal dust. This material has a high inner wall roughness, specifically Ra≥3.2μm, leading to a significantly increased adhesion rate of metal dust to the pipe's inner wall, thus affecting dust removal efficiency.

[0004] Structural defects: Traditional dust collection duct designs often use straight pipe sections. This design causes a sharp drop in airflow velocity of about 50% at 90° bends. This drastic decrease in velocity makes it easy for dust accumulation dead zones to form in these areas. Experimental data clearly shows that the amount of dust accumulated in these dead zones can even reach 15% of the total duct volume, seriously affecting the duct's smoothness and dust collection efficiency.

[0005] Safety hazards: Plastic pipes are inherently flammable. When combined with explosive metal dust, the risk of combustion and explosion accidents is greatly increased. This potential safety hazard poses a serious threat to the production environment and personnel safety, and urgently needs to be completely resolved through technological improvements. Utility Model Content

[0006] This utility model provides a dust removal pipeline system for a clog-resistant and flame-retardant tensile test specimen grinding machine, which solves the technical problems of traditional plastic pipes being prone to clogging and explosion.

[0007] This utility model embodiment provides a dust removal pipeline system for a clog-resistant, flame-retardant tensile specimen grinding machine, comprising:

[0008] Dust collector;

[0009] A dust removal pipe is connected between a dust collector and a tensile specimen edge grinding machine; the dust removal pipe includes a first dust removal sub-pipe connected to the dust collector, a second dust removal sub-pipe connected to the tensile specimen edge grinding machine, and a third dust removal sub-pipe connecting the first dust removal sub-pipe and the second dust removal sub-pipe;

[0010] A pressure sensor used to monitor internal pressure data in dust removal pipelines; wherein:

[0011] A spiral flow guide assembly is installed in the dust removal duct; a pneumatic dust removal module is installed on the side wall of the second dust removal sub-duct; one end of the pressure guide pipe is inserted into the third dust removal sub-duct from the outside to the inside, and the other end of the pressure guide pipe is connected to the sensitive probe of the pressure sensor; a flame-retardant coating is provided on the inner and outer walls of the dust removal duct, and a copper-plated grounding rod is provided between the outer wall of the dust removal duct and the ground.

[0012] In an exemplary embodiment of the present invention, the spiral guide assembly includes a cylindrical central shaft, and a plurality of stainless steel guide vanes are installed on the outer side wall of the central shaft; the end of the stainless steel guide vane away from the central shaft is tightly fitted to the inner wall of the dust removal pipe.

[0013] In an exemplary embodiment of this utility model, the stainless steel guide plate has a thickness of 1.5 mm, and the inclination angle between the stainless steel guide plate and the central axis is 25°±2°.

[0014] In an exemplary embodiment of this utility model, the first dust removal sub-pipe, the third dust removal sub-pipe, and the second dust removal sub-pipe are connected in sequence via flanges.

[0015] In an exemplary embodiment of this utility model, a rubber O-ring is provided at the flange connection.

[0016] In an exemplary embodiment of the present invention, the third dust removal sub-pipe is vertically connected to the first dust removal sub-pipe and the second dust removal sub-pipe, and a quick-release port is provided between the third dust removal sub-pipe and the first dust removal sub-pipe and the second dust removal sub-pipe.

[0017] In an exemplary embodiment of this utility model, the dust removal pipe is made of 316L stainless steel with a thickness of ≥2.5mm and the inner wall is electropolished to Ra≤0.4μm.

[0018] In an exemplary embodiment of this utility model, the pneumatic dust removal module includes an air tank and a branch pipe. One end of the branch pipe is inserted into a second dust removal sub-pipe from the outside to the inside, and the other end of the branch pipe is connected to the air tank. A pulse valve assembly is installed on the branch pipe.

[0019] In an exemplary embodiment of this invention, the air pressure inside the air bag is 0.6 MPa.

[0020] In an exemplary embodiment of this utility model, a fan-shaped nozzle is installed at the outlet end of the branch pipe.

[0021] The beneficial effects of the anti-clogging, flame-retardant dust removal pipeline system for a tensile specimen grinding machine provided in this embodiment of the invention are as follows:

[0022] This utility model can solve the technical problems of traditional plastic pipes being prone to clogging and flammability / explosion, specifically including:

[0023] This invention utilizes a spiral flow guide component installed inside the dust collection duct to guide airflow smoothly and reduce dust accumulation. Simultaneously, a pneumatic cleaning module is installed on the side wall of the second dust collection sub-duct. This module can be automatically or manually activated when necessary to powerfully remove dust adhering to the inner wall of the duct. Through the combined application of these two key technologies, this invention effectively solves the technical problem of blockages easily occurring in traditional dust collection ducts during use, significantly improving the duct's operating efficiency and stability.

[0024] Furthermore, this invention coats the inner and outer walls of the dust collection duct with one or more layers of flame-retardant coating. This coating possesses excellent fire-retardant properties and can effectively prevent the spread of flames in high-temperature environments. Simultaneously, at least one copper-plated grounding rod is installed between the outer wall of the dust collection duct and the ground. This grounding rod can quickly conduct the charge generated by the duct due to static electricity or other reasons to the ground, thereby effectively preventing explosions caused by static electricity accumulation in the dust collection duct. These two safety measures provide dual protection, enabling this invention to effectively solve the technical problem of the flammability and explosion of dust collection ducts, greatly improving the safety and reliability of the equipment.

[0025] To further enhance the system's management capabilities, this invention is also equipped with a pressure sensor. This sensor can monitor real-time pressure changes inside the dust collection duct and display or transmit the data to the control center. Engineers can use this real-time pressure data, combined with their extensive experience and expertise, to accurately determine the duct's internal operating status and, if necessary, promptly activate the pneumatic cleaning module for targeted cleaning operations.

[0026] In summary, this invention not only effectively avoids pipe blockage and explosion risks, but also significantly extends the service life of the equipment and reduces maintenance costs. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model, 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.

[0028] Figure 1 This is a front view provided in an embodiment of the present utility model;

[0029] Figure 2 This is a top view provided in an embodiment of the present utility model;

[0030] Figure 3 This is the cross-section of the spiral flow guide component provided in this embodiment of the utility model.

[0031] The components include: 1. Pressure sensor; 2. Pressure guide pipe; 3. Flange; 4. Mounting bracket; 5. Copper-plated grounding rod; 6. Outer wall; 7. Quick release port; 8. Air tank; 9. Branch pipe. Detailed Implementation

[0032] To enable those skilled in the art to better understand this solution, the technical solutions in the embodiments of this solution will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this solution, not all of them. Based on the embodiments of this solution, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this solution.

[0033] The term "comprising" and any other variations thereof in the specification, claims, and accompanying drawings of this invention mean "including but not limited to," and are intended to cover a non-exclusive inclusion, not limited to the examples listed herein. Furthermore, the terms "first" and "second," etc., are used to distinguish different objects, not to describe a specific order.

[0034] The implementation of this utility model will be described in detail below with reference to the specific accompanying drawings:

[0035] Please see Figure 1 and Figure 2 A dust removal pipeline system for a clog-resistant and flame-retardant tensile specimen grinding machine mainly includes a dust collector and dust removal pipelines; wherein:

[0036] The dust removal pipe is one of the core components of this utility model. The dust removal pipe is connected between the dust collector and the tensile specimen grinding machine. The dust removal pipe includes a first dust removal sub-pipe connected to the dust collector, a second dust removal sub-pipe connected to the tensile specimen grinding machine, and a third dust removal sub-pipe connecting the first and second dust removal sub-pipes. The dust removal pipe is fixed on the top of the mounting bracket 4 and is at a certain height from the ground.

[0037] The internal pressure data of the dust removal pipeline is one of the core indicators for judging whether the dust removal pipeline is normal. In order to timely grasp the internal pressure data of the dust removal pipeline, this utility model uses a pressure sensor 1 to monitor the internal pressure data of the dust removal pipeline; one end of the pressure guide tube is inserted into the third dust removal sub-pipe from the outside to the inside, and the other end of the pressure guide tube 2 is connected to the sensitive probe of the pressure sensor; this utility model uses a conduit to draw out the gas in the dust removal pipeline, and then uses a pressure sensor to monitor the gas pressure data in the conduit, thereby realizing the monitoring of the pressure data in the dust removal pipeline;

[0038] To avoid or reduce the risk of blockage in the dust removal pipeline, this utility model provides a spiral flow guiding component in the dust removal pipeline; and a pneumatic dust removal module is installed on the side wall of the second dust removal sub-pipeline.

[0039] To prevent dust explosions and spontaneous combustion, flame-retardant coatings are provided on the inner and outer walls 6 of the dust removal duct, and a copper-plated grounding rod 5 is installed between the outer wall of the dust removal duct and the ground.

[0040] The flame-retardant coating is a composite coating of nano-magnesium hydroxide / silane coupling agent for both the inner and outer pipe walls; at the same time, the grounding resistance of the dust removal pipe (304 stainless steel pipe body can be selected) and the equipment is ≤4Ω, and the size of the copper-plated grounding rod is Φ25×4mm.

[0041] To better understand the technical solution of this utility model, the following is a non-limiting description:

[0042] Please see Figure 3 The spiral guide assembly includes a cylindrical central shaft, and a plurality of stainless steel guide vanes are installed on the outer side wall of the central shaft; the end of the stainless steel guide vane away from the central shaft is tightly fitted to the inner wall of the dust removal pipe.

[0043] The stainless steel guide plate has a thickness of 1.5 mm, and the inclination angle between the stainless steel guide plate and the central axis is 25°±2°.

[0044] The dust collection duct is made of stainless steel, specifically 316L stainless steel pipe body, model SUS316L, with a thickness ≥2.5mm and inner wall electropolished to Ra≤0.4μm.

[0045] The first dust removal sub-pipe, the third dust removal sub-pipe, and the second dust removal sub-pipe are connected in sequence by flange 3. In this embodiment, the flange model is NS333.

[0046] To prevent dust leakage, rubber O-rings are installed at the flange connection.

[0047] The third dust removal sub-pipe is vertically connected to the first dust removal sub-pipe and the second dust removal sub-pipe respectively. A quick-release port 7 is provided between the third dust removal sub-pipe and the first dust removal sub-pipe and the second dust removal sub-pipe to prevent dust accumulation dead corners.

[0048] The pneumatic dust removal module includes an air tank 8 and a branch pipe 9. One end of the branch pipe is inserted into a second dust removal sub-pipe from the outside to the inside, and the other end of the branch pipe is connected to the air tank. A pulse valve assembly is installed on the branch pipe.

[0049] The air pressure inside the air bag is 0.6 MPa.

[0050] The outlet end of the branch pipe is equipped with a fan-shaped nozzle.

[0051] Installation process and working principle:

[0052] 1. Dust collection duct installation:

[0053] A modular quick-installation structure is adopted, and three dust removal sub-pipes with a length of 0.5m are selected;

[0054] The radius of curvature of the elbow at quick-release port 7 is R = 5D (D is the pipe diameter), which reduces the intensity of turbulence.

[0055] The first dust removal sub-pipe, the second dust removal sub-pipe, and the third dust removal sub-pipe are installed using the quick-release port 7;

[0056] 2. Pneumatic dust removal:

[0057] Installation: Install a fan-shaped nozzle at one end of the branch pipe 9, then insert the branch pipe, and then install the air manifold 8. The spray angle of the fan-shaped nozzle is 60°, that is, the angle between the airflow direction of the fan-shaped nozzle and the dust transmission direction is 60°.

[0058] 3. Pressure sensor

[0059] Pressure guide tube 2 is equipped with a stainless steel tube with an inner diameter of Φ8mm;

[0060] The mounting bracket should be at least 1.2m above the ground to prevent vibration transmission.

[0061] 4. Dust removal process

[0062] Daily automatic backflush program: 3 pulse backflushes are executed at 08:00 / 12:00 / 16:00 each (pressure 0.6MPa, duration 0.8s);

[0063] Monthly manual maintenance: Remove dust from the guide vanes via the quick-release port; maintenance time ≤ 30 minutes.

[0064] 5. Monitoring and alarm

[0065] The pressure sensor is connected to the alarm, which can be either an audible or visual alarm. When the pressure difference is greater than 1500Pa, the audible and visual alarm will be triggered and emergency dust removal will be initiated. The pressure sensor model is WIKAS-11.

[0066] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A dust removal pipeline system for a clog-resistant, flame-retardant tensile specimen grinding machine, comprising a dust collector; characterized in that, Also includes: A dust removal pipe is connected between a dust collector and a tensile specimen edge grinding machine; the dust removal pipe includes a first dust removal sub-pipe connected to the dust collector, a second dust removal sub-pipe connected to the tensile specimen edge grinding machine, and a third dust removal sub-pipe connecting the first dust removal sub-pipe and the second dust removal sub-pipe; A pressure sensor used to monitor internal pressure data in dust removal pipelines; wherein: A spiral flow guide assembly is installed in the dust removal duct; a pneumatic dust removal module is installed on the side wall of the second dust removal sub-duct; one end of the pressure guide pipe is inserted into the third dust removal sub-duct from the outside to the inside, and the other end of the pressure guide pipe is connected to the sensitive probe of the pressure sensor; a flame-retardant coating is provided on the inner and outer walls of the dust removal duct, and a copper-plated grounding rod is provided between the outer wall of the dust removal duct and the ground.

2. The anti-plugging, flame-deterred, tensile specimen grinder dusting duct system of claim 1, wherein, The spiral guide assembly includes a cylindrical central shaft, and a plurality of stainless steel guide vanes are installed on the outer side wall of the central shaft; the end of the stainless steel guide vane away from the central shaft is tightly fitted to the inner wall of the dust removal pipe.

3. The anti-plugging, flame-deterred, tensile specimen grinder dusting duct system of claim 2, wherein, The stainless steel guide plate has a thickness of 1.5 mm, and the inclination angle between the stainless steel guide plate and the central axis is 25°±2°.

4. The anti-plugging, fire-resistant, tensile-specimen grinder dusting duct system of claim 1, wherein, The first dust removal sub-pipe, the third dust removal sub-pipe, and the second dust removal sub-pipe are connected in sequence via flanges.

5. The anti-plugging, flame-deterred, tensile specimen grinder dusting duct system of claim 4, wherein, A rubber O-ring is installed at the flange connection.

6. The anti-plugging, fire-resistant, tensile-specimen frame grinder dusting duct system of claim 1, wherein, The third dust removal sub-pipe is vertically connected to the first dust removal sub-pipe and the second dust removal sub-pipe, and a quick-release port is provided between the third dust removal sub-pipe and the first dust removal sub-pipe and the second dust removal sub-pipe.

7. The anti-plugging, flame-deterred, tensile specimen grinder dusting duct system of claim 6, wherein, The dust removal pipe is made of 316L stainless steel with a thickness of ≥2.5mm and the inner wall is electropolished to Ra≤0.4μm.

8. The anti-plugging, flame-deterred, tensile specimen grinder dusting duct system of claim 1, wherein, The pneumatic dust removal module includes an air tank and a branch pipe. One end of the branch pipe is inserted into a second dust removal sub-pipe from the outside to the inside, and the other end of the branch pipe is connected to the air tank. A pulse valve assembly is installed on the branch pipe.

9. The anti-plugging, flame-deterred, tensile specimen grinder dusting duct system of claim 8, wherein, The air pressure inside the air bag is 0.6 MPa.

10. The anti-plugging, flame-deterred, tensile specimen grinder dusting duct system of claim 8, wherein, The outlet end of the branch pipe is equipped with a fan-shaped nozzle.

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