Intelligent discharging device for barreled liquid chemicals

Abstract

The utility model provides an intelligent discharging device for barreled liquid chemicals, which is specially designed for automatic discharging of the barreled liquid chemicals and integrates a high-precision sensor, a stepping motor and a pneumatic transmission and intelligent control system. A barrel to be unloaded is automatically positioned through a roller conveyor, a barrel opening recognition detector accurately recognizes the position of a barrel opening, then a stepping motor drives a double-layer trolley to move cooperatively, a material suction pipe is accurately in butt joint with the barrel opening, a lifting air cylinder is responsible for vertical lifting of the material suction pipe, tight attachment is ensured, and a diaphragm pump serves as a power source to suck chemicals and convey the chemicals to a target tank. The whole process is automatically monitored by an intelligent control system, accurate, efficient and safe discharging is guaranteed, the device further has the fault detection and alarm functions, it is guaranteed that operation is worry-free, and the device is suitable for various barreled liquid chemicals and is an ideal choice for improving the production efficiency and reducing the labor cost.

Description

Technical Field

[0001] This utility model relates to the field of unloading device technology, and in particular to an intelligent unloading device for barrelled liquid chemicals. Background Technology

[0002] For waste solvent regeneration companies, operations such as unloading and transferring drummed waste solvents are frequently involved. The unloading of drummed liquid chemicals is mainly done by pump suction, which results in significant material loss, especially for low-boiling-point solvents (such as dichloromethane, acetone, tetrahydrofuran, methyl tert-butyl ether, etc.), increasing the load on exhaust gas treatment.

[0003] The most advanced unloading device in the existing technology is the loading arm unloading, as shown in the instruction manual. Figure 1 As shown, the loading arm unloading device consists of loading arm, unloading pump, pump outlet pipeline, valves and fittings, etc. The unloading pump is usually a self-priming pump, such as diaphragm pump, gear pump, self-priming pump, barrel pump, etc.

[0004] However, this type of loading arm unloading device has the following shortcomings:

[0005] 1. The suction tube cannot be accurately inserted into the bucket opening;

[0006] When the packaging barrels are delivered to the parking position by the roller conveyor, the orientation of the barrel opening is random, and the suction pipe cannot be automatically aligned and cannot be accurately inserted into the barrel opening, so manual guidance is required.

[0007] 2. The robotic arm is heavy;

[0008] All sections of the loading arm are supported by a robotic arm, which is welded from various types of steel and carries the telescopic components required for the movement of each section, such as cylinders, drive motors, pneumatic pipelines and circuits. The static load is quite heavy, and all these loads and torques are borne by each rotary joint and rotary base.

[0009] 3. Frequent replacement of easily damaged parts;

[0010] Even when stationary, each rotary joint and rotary base is subjected to large torque and various stresses. In order to perform various actions, such as adjusting angle and distance, the loading arm causes the seals to be under stress for a long time and to be frequently replaced due to the swelling effect of solvents, resulting in poor economic efficiency.

[0011] To address these issues, an intelligent unloading device for barrelled liquid chemicals is proposed. Utility Model Content

[0012] In order to overcome the shortcomings of the existing technology, this utility model provides an intelligent unloading device for barrelled liquid chemicals.

[0013] This utility model is achieved using the following technical solution:

[0014] The utility model discloses a kind of barrel liquid chemical intelligent unloading devices, including base steel frame, diaphragm pump and suction tube, the base steel frame is made of section steel welding, the diaphragm pump is arranged in the side of base steel frame, the upper end of the suction tube is equipped with metal hose, the other end of the metal hose is connected with the input end of diaphragm pump, the output end of diaphragm pump is equipped with pipeline, material is sent to target jar;

[0015] The upper surface of the base steel frame is equipped with a moving device, the lower end of the suction tube is mounted on the moving device, and the moving device is used for the movement and positioning of the suction tube.

[0016] The lower side of the base steel frame is equipped with a roller conveyor, which is used to deliver the packaging barrel to the designated position and away after unloading.

[0017] The moving device includes a track, which is arranged on the upper surface of the base steel frame, a lower trolley is arranged in the track, and a grating positioning ruler is arranged in the track.

[0018] The lower trolley is equipped with a track, which is used for the operation of an upper trolley, a grating positioning ruler is arranged in the track, the suction tube is fixed to the upper trolley, the lower end of the upper trolley is equipped with a drum mouth recognition detector, the upper trolley and the lower trolley are linked to cruise and find the position of the drum mouth, and the upper trolley and the lower trolley are driven to operate by a stepping motor.

[0019] The upper surface of the upper trolley is fixedly equipped with a lifting cylinder, and the suction tube is fixed to the top end of the lifting cylinder.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] The device aims at the difficulty that the snorkel cannot be accurately inserted into the barrel mouth in the prior art, introduces the use of a pattern recognition system and artificial intelligence technology, a central processing unit simulates and calculates the running track of each action unit, commands the suction pipe to run from the starting position and stop above the barrel mouth, the imaging recognition element at the end of the suction pipe is rechecked and fine-tuned by the processor, and after confirmation, the suction pipe runs downward and stops after inserting into the barrel bottom (keeping the required gap for suction), more particularly, the end of the suction pipe is provided with a pressure-sensitive element which can judge the liquid level in the barrel and automatically stop the pump when suction is impossible; the device can also judge whether there is solid or sediment at the bottom and the thickness of the material layer and display a question window on the PLC panel for the operator to decide, and the above-mentioned barrel liquid chemical intelligent unloading device realizes efficient, accurate and safe automatic unloading process by integrating sensor technology, stepping motor drive, pneumatic transmission technology and automatic control technology, reduces manual intervention, reduces the risk of workers exposed to harmful environments, and improves work safety; the double-layer track design and the application of the lifting cylinder enable the device to adapt to packaging barrels of different specifications and positions, improving the versatility and adaptability. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a schematic diagram of the snorkel unloading in the prior art;

[0023] Figure 2 is a schematic diagram of the overall structure of the present application;

[0024] In the figure: 1, diaphragm pump; 2, metal hose; 3, suction pipe; 4, lifting cylinder; 5, upper trolley; 6, lower trolley; 7, base steel frame; 8, roller conveyor; 9, packaging barrel. DETAILED DESCRIPTION

[0025] In the following, the present application will be further described in conjunction with the drawings and specific embodiments, and it should be noted that the following described embodiments or technical features can be combined in any way to form new embodiments without conflict.

[0026] In the prior art, as shown in Figure 1 , the pipe unloading device is usually composed of a snorkel, an unloading pump, a pump outlet pipeline and valve pipes, etc., and the unloading pump is usually selected from a delivery pump with self-suction function, such as a diaphragm pump 1, a gear pump, a self-suction pump, a barrel pump, etc., but the snorkel unloading device has the following disadvantages:

[0027] 1. The suction pipe 3 cannot be accurately inserted into the barrel mouth;

[0028] When the packaging barrel 9 is sent to the parking position by the roller conveyor, the orientation of the barrel mouth is random, the suction pipe 3 cannot be automatically aligned, and cannot be accurately inserted into the barrel mouth, which must be manually guided;

[0029] 2. The mechanical arm is heavy;

[0030] All pipe sections of the crane pipe are supported by the mechanical arm, which is welded by various section steels, and bears the extension elements required by the action of each pipe section, such as air cylinder, driving motor, pneumatic pipeline and circuit, and the static load is quite heavy, and all the load and torque are borne by each rotary joint and rotary base;

[0031] 3. The wearing parts are replaced frequently;

[0032] Even in the static state, each rotary joint and rotary base bears a larger torque and various stresses, the crane pipe is used to perform various actions, such as adjusting the angle and distance, so that the wearing parts are replaced frequently and the economy is poor under the long-term stress of the sealing element and the swelling action of the solvent;

[0033] To solve the above problems, the utility model is further described below in combination with the drawings,

[0034] As shown in Figure 2 A barrel liquid chemical intelligent unloading device, comprising a foundation steel frame 7, a diaphragm pump 1 and a suction pipe 3, the foundation steel frame 7 is made of section steel welding, the foundation steel frame 7 provides a stable support structure, ensures the stability and safety of the whole unloading device in the working process, the diaphragm pump 1 is arranged at the side of the foundation steel frame 7, provides a power source, sucks the barrel liquid chemical into through the suction pipe 3, and transports it into the target tank through the output pipeline, realizes the continuous or intermittent delivery of liquid, and meets different unloading requirements;

[0035] The upper end of the suction pipe 3 is provided with a metal hose 2, the other end of the metal hose 2 is connected with the input end of the diaphragm pump 1, and the output end of the diaphragm pump 1 is provided with a pipeline to send the material to the target tank;

[0036] The upper surface of the foundation steel frame 7 is provided with a moving device, the lower end of the suction pipe 3 is installed on the moving device, and the moving device is used for the moving positioning of the suction pipe 3;

[0037] The lower part of the foundation steel frame 7 is provided with a roller conveyor 8, the roller conveyor 8 is used to send the packaging barrel 9 to the designated position and send it away after unloading, so as to realize the automation of the whole unloading process.

[0038] The moving device comprises a track, the track is arranged on the upper surface of the foundation steel frame 7, a lower trolley 6 is arranged in the track, which is used for realizing the transverse movement in a larger range, a grating positioning ruler is arranged in the track, and the lower trolley 6 can move forward and backward in the track;

[0039] The lower trolley 6 is provided with a track for the operation of the upper trolley 5 to realize more accurate position adjustment, and a grating positioning ruler is arranged in the track to accurately measure the position of the trolley, so that the suction pipe 3 can be accurately aligned with the mouth of the packaging barrel 9; the suction pipe 3 is fixed to the upper trolley 5; the lower end of the upper trolley 5 is provided with a barrel mouth recognition detector for automatically recognizing and positioning the mouth of the packaging barrel 9 to improve the unloading accuracy; the upper trolley 5 and the lower trolley 6 are linked to cruise to find the position of the barrel mouth; the upper trolley 5 and the lower trolley 6 are driven to operate by a stepping motor, and the stepping motor drives the trolley to realize accurate and stable movement control.

[0040] A lifting cylinder 4 is fixed to the upper surface of the upper trolley 5, and the suction pipe 3 is fixed to the top end of the lifting cylinder 4; the suction pipe 3 is accurately connected with the mouth of the packaging barrel 9 through the extension and retraction of the lifting cylinder 4, so that the stability and accuracy of unloading are further improved.

[0041] The lower end of the suction pipe 3 is provided with an imaging and material recognition and liquid level detector, and a PLC device is arranged on the side of the base steel frame 7; all the detectors, grating positioning rulers and barrel mouth recognition detectors in the device are electrically connected with the PLC device; the PLC device mainly bears the calculation and analysis of a central processing unit; the operation track of the suction pipe 3 is automatically calculated after image analysis and processing; the PLC system is designed to automatically operate or remotely operate and control.

[0042] The use principle of the utility model is as follows: when in use, the device is started, the roller conveyor 8 starts to operate, the packaging barrel 9 to be unloaded is automatically sent to the designated unloading position, the PLC control system is initialized, and each sensor and executing mechanism enters the standby state.

[0043] The barrel mouth recognition detector is started, and the position and shape of the mouth of the packaging barrel 9 are automatically recognized and positioned through laser or infrared sensing technology; the grating positioning ruler monitors the positions of the lower trolley 6 and the upper trolley 5 in real time to provide position feedback for the control system; the control system calculates the position and angle that the suction pipe 3 needs to move according to the information of the barrel mouth recognition detector and the grating positioning ruler;

[0044] The stepping motor is started to drive the lower trolley 6 and the upper trolley 5 to move on the track, so that the suction pipe 3 gradually approaches the mouth of the packaging barrel 9; in the moving process, the grating positioning ruler continuously monitors the position information to ensure the accurate movement of the trolley.

[0045] After the suction pipe 3 is aligned with the barrel mouth, the lifting cylinder 4 is retracted to make the suction pipe 3 inserted into the barrel, and the insertion depth of the suction pipe 3 is determined by the pipe end liquid level detector; after the suction pipe 3 is inserted into the barrel bottom along the barrel mouth (with a gap reserved), the diaphragm pump 1 starts to work, and the liquid chemicals are sent to the target storage tank along the suction pipe 3, the metal hose 2 and the diaphragm pump 1; when the suction pipe 3 has no material to suck, the diaphragm pump 1 stops working.

[0046] After the unloading is completed, the control system closes the diaphragm pump 1 and the lifting cylinder 4, the roller conveyor 8 is started, the empty barrel is sent away from the unloading position, the next round of unloading is prepared, the control system enters the standby state, and the next operation instruction is waited.

[0047] The above embodiment is only a preferred embodiment of the present application, and cannot be used to limit the range of the present application. Any non-substantial change and replacement made by those skilled in the art on the basis of the present application belongs to the range of the present application.

Claims

1. A smart unloading device for a liquid chemical in a drum, characterized by, It includes a base steel frame (7), a diaphragm pump (1) and a suction pipe (3), the base steel frame (7) is welded by section steel, the diaphragm pump (1) is arranged at the side of the base steel frame (7), the upper end of the suction pipe (3) is provided with a metal hose (2), the other end of the metal hose (2) is connected with the input end of the diaphragm pump (1), the output end of the diaphragm pump (1) is provided with a pipeline, and the material is sent to the target tank. The upper surface of the base steel frame (7) is provided with a moving device, the lower end of the suction pipe (3) is installed on the moving device, and the moving device is used for the movement and positioning of the suction pipe (3). The lower side of the base steel frame (7) is provided with a roller conveyor (8), which is used to send the packaging barrel (9) to the designated position and send it away after unloading.

2. The intelligent dispensing device for a liquid chemical in a drum according to claim 1, characterized in that: The moving device includes a track arranged on the upper surface of the base steel frame (7), a lower trolley (6) arranged in the track, and a grating positioning ruler arranged in the track, and the lower trolley (6) can move forward and backward in the track. The lower trolley (6) is provided with a track for the operation of an upper trolley (5), a grating positioning ruler is arranged in the track, the suction pipe (3) is fixed on the upper trolley (5), the lower end of the upper trolley (5) is provided with a drum opening recognition detector, the upper trolley (5) and the lower trolley (6) are linked to cruise and find the position of the drum opening, and the upper trolley (5) and the lower trolley (6) are driven to operate by a stepping motor.

3. A smart dispensing device for a liquid chemical in a drum as claimed in claim 2, wherein: The upper surface of the upper trolley (5) is fixedly provided with a lifting cylinder (4), and the suction pipe (3) is fixed to the top end of the lifting cylinder (4).

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