TWM536132U - Pretreatment device - Google Patents

Description

Pretreatment device

The present invention relates to a pretreatment device, and more particularly to a pretreatment device for sandblasting a blast furnace molten iron sample.

The surface of the blast furnace hot metal sample often adheres to the iron powder which is difficult to remove. When the sample is sent to the X-ray fluorescence analyzer for component analysis, the attached iron powder easily falls into the analyzer, which increases the vacuum of the instrument and affects the instrument analysis. Stability and accuracy. Therefore, in order to avoid costly analyzer damage, the sample must be pre-treated to remove iron powder from the sample before analysis.

Referring to Figure 1, the sample is conventionally pretreated with a commercially available sand blasting machine 1 comprising an outer casing 11 and a nozzle (not shown) for the user to hold. The outer casing 11 defines a working space 111 and two openings 112 that communicate with the working space 111. The user needs to pass the hands through the openings 112 and into the working space 111, and the hands and the nozzles are respectively grasped by the hands to perform the sandblasting operation on the sample in the working space 111. The sprayed sand material shot down the iron powder on the surface of the sample to complete the pretreatment work. However, the grain size of the sand material gradually decreases after multiple impacts, resulting in a worse and worse sandblasting effect and easy to float out of the working space 111 due to the light weight.

Accordingly, it is an object of the present invention to provide a pretreatment device for screenable sand.

Thus, the novel pretreatment device is suitable for cleaning a sample made of a blast furnace and used in conjunction with a dust collecting device. The pretreatment device comprises a sandblasting unit and a transfer unit. The blasting unit includes a blasting cylinder defining a working space for accommodating the sample, a nozzle disposed on the blasting cylinder for blasting the sample, and one end respectively communicating with the dust collecting device and The buffer tank of the work space. The working space of the sandblasting cylinder can accommodate the sand material used in the sandblasting operation, and the buffering cylinder can be used to buffer the passing sand material when the dust collecting device sucks the sand material in the working space through the buffering cylinder. The light sand passes through and the heavier sand falls back into the work space. The transfer unit can be operated to place the sample into the workspace.

The utility model has the advantages that the dust collecting device can be started before the sand blasting operation to attract the sand material upward to the buffer cylinder, and the sand material with smaller particle diameter passes through the buffer cylinder to enter the dust collecting device. Was collected. The sand material with a larger particle size will be returned to the working space under the buffer of the buffer cylinder by its own gravity, and the sandblasting effect can be ensured through the foregoing process, and the sand material is prevented from leaking out of the working space.

Referring to Figures 2, 3 and 4, an embodiment of the novel pretreatment device 2 is suitable for cleaning a sample 3 made of a blast furnace and used in conjunction with a dust collecting device 4, such as a blast furnace iron. Water sample. The pretreatment device 2 comprises a sandblasting unit 5, a transfer unit 6 disposed on the sandblasting unit 5, and a control unit 7 for controlling the sandblasting unit 5. The blasting unit 5 includes a tripod 51, a blasting cylinder 52 disposed on the gantry 51, a nozzle 53 disposed on the blasting cylinder 52, and a two ends respectively communicating with the dust collecting device 4 and the blasting cylinder Buffer cylinder 54 of 52. The sandblasting cylinder 52 defines a working space 521 and an inlet 522 that communicates with the working space 521 and the outside.

The transfer unit 6 includes a base 61 connected to the sandblasting cylinder 52, and a conveying link 62 movably disposed on the base 61. The base 61 has a seat portion 611 located below the inlet 522 and extending outwardly from the sandblasting cylinder 52, and a base portion 611 formed on the seat body portion 611 and extending from the top surface of the seat portion 611 to the bottom surface. A spout 612, and a surrounding wall portion 614 that is obliquely coupled below the seat portion 611 and that surrounds a slide 613 that communicates with the drop opening 612. The seat body 611 surrounds a shaft hole 615 that extends in the horizontal direction and corresponds to the inlet 522 of the sandblasting cylinder 52. The conveying link 62 has a shaft portion 621 extending through the shaft hole 615, a grip portion 622 connected to one end of the shaft portion 621 away from the inlet portion 522, and a set on the shaft portion 621. And a blocking portion 623 of the holding portion 622, and a bearing portion 625 connected to the other end of the shaft portion 621 and surrounding the receiving groove 624 with an opening upward.

The control unit 7 includes a gas source 71 connected to the nozzle 53 through at least one line 8 for supplying air, a switch 72 for controlling whether the gas source 71 supplies air, and a throttle valve 73 connecting the gas source 71. a valve 44 that is pivotally disposed on the blasting unit 52 of the blasting unit 5 and that can be driven by the throttle valve 73 to close the inlet 522, and a gas source 71 connected to control the gas source 71. The ball valve 75 at the time when the supplied gas enters the nozzle 53. In the present embodiment, the switch 72 is a foot switch that can be controlled in a foot mode.

2 to 5, when the embodiment is used, the operation mode is as follows: the sample 3 to be processed is placed in the accommodating groove 624 of the conveying link 62, and the conveying link 62 is directed to the inlet 522. Pushing, the transport link 62 is moved relative to the base 61 by a removed position as shown in FIG. 3 to a shift-in position as shown in FIG. At this time, the carrying portion 625 and the carried sample 3 are located in the working space 521 in which the plurality of sand materials are accommodated through the inlet 522. Then, the switch 72 is pressed to activate the air source 71. The air source 71 interlocks the throttle valve 73 to drive the valve 74 to swing relative to the inlet 522 from an open position as shown in FIG. The closed position shown. When the valve 74 is in the closed position, the valve 74 closes the inlet 522, and then the ball valve 75 sends the gas supplied from the gas source 71 to the nozzle 53 to blast the sample 3 after the set time is exceeded. The operation, this design is to prevent the nozzle 53 from starting sand blasting when the valve 74 has not moved to the closed position.

After the blasting operation is completed, the user's foot can be removed from the switch 72, so that the air source 71 is no longer supplied with air, so that the nozzle 53 immediately stops blasting, and then the throttle valve 73 will drive the valve 74 to swing again. To the open position of FIG. 3, the valve 74 no longer closes the inlet 522. Finally, the user pulls back the transport link 62 to move the transport rod back to the removal position of FIG. 3, at which time the bearing portion 625 and the sample 3 are located outside the working space 521, and the bearing portion 625 is located at the Above the drop opening 612, the user can rotate the grip portion 622 to drive the load portion 625 to reverse, so that the sample 3 passes down the drop port 612 and falls into the slide 613 for picking.

Before the next use, the dust collecting device 4 may be first opened to allow the sand material having a smaller particle size to be collected after passing through the buffer cylinder 54, and the sand material having a larger particle size is re-entered by the weight of the self. In the working space 521, the above-mentioned design can ensure that the sand materials can maintain a better sand blasting effect, and the sand material having a smaller particle size can be prevented from falling out of the working space 521.

The transfer unit 6 allows the user to operate without moving his hand into the working space 521, thereby preventing the hand from being inadvertently hit by the sand during the blasting operation. The flap portion 623 can further protect the user's hand to avoid pinching during operation. The inlet 522 is placed through the stand 51 at a height that is convenient for the user to operate, which is about 90 cm in this embodiment. Through the buffer cylinder 54, the sand material can be sieved before sandblasting to remove the sand material with too small particle size, thereby maintaining proper sandblasting effect.

In summary, the transfer unit 6 allows the user to perform a sand blasting operation without placing the hand in the working space 521, thereby avoiding the user's hand injury, and the buffer cylinder 54 can make the particle size smaller. The sand material is sucked by the dust collecting device 4, and the sand material having a large particle diameter is returned to the working space 521 again, and the sand material in the working space 521 can be maintained at an appropriate particle diameter, so that it can be achieved. The purpose of this new type.

However, the above is only the embodiment of the present invention, and when it is not possible to limit the scope of the present invention, all the simple equivalent changes and modifications according to the scope of the patent application and the contents of the patent specification are still This new patent covers the scope.

2‧‧‧Pre-treatment device
3‧‧‧ samples
4‧‧‧dust collection device
5‧‧‧ sandblasting unit
51‧‧‧ foot stand
52‧‧‧Blasting cylinder
521‧‧‧Work space
522‧‧‧ entrance
53‧‧‧ nozzle
54‧‧‧buffer
6‧‧‧Transfer unit
61‧‧‧ Pedestal
611‧‧‧ body
612‧‧‧Drops
613‧‧ ‧ slide
614‧‧‧ Around the wall
615‧‧‧Axis hole
62‧‧‧Conveying connecting rod
621‧‧‧ shaft body
622‧‧‧ grip
623‧‧ ‧Flap section
624‧‧‧ accommodating slots
625‧‧‧ Carrying Department
7‧‧‧Control unit
71‧‧‧ gas source
72‧‧‧ switch
73‧‧‧ throttle valve
74‧‧‧ Valve
75‧‧‧Ball valve
8‧‧‧ pipeline

Other features and advantages of the present invention will be apparent from the following description of the drawings, wherein: FIG. 1 is a perspective view illustrating a conventional sand blasting machine; FIG. 2 is a perspective view of the present invention. FIG. 3 is an incomplete perspective view showing a state in which one of the conveying links of the embodiment is in a removed position and a valve is in an open position; FIG. 4 is an incomplete perspective view illustrating the present invention; A control unit of one embodiment; and FIG. 5 is an incomplete perspective view showing the embodiment in which the transport link is in a shift-in position and the valve is in a closed position.

2‧‧‧Pre-treatment device

4‧‧‧dust collection device

5‧‧‧ sandblasting unit

51‧‧‧ foot stand

52‧‧‧Blasting cylinder

53‧‧‧ nozzle

54‧‧‧buffer

6‧‧‧Transfer unit

61‧‧‧ Pedestal

611‧‧‧ body

614‧‧‧ Around the wall

62‧‧‧Conveying connecting rod

621‧‧‧ shaft body

622‧‧‧ grip

623‧‧ ‧Flap section

625‧‧‧ Carrying Department

7‧‧‧Control unit

72‧‧‧ switch

73‧‧‧ throttle valve

74‧‧‧ Valve

8‧‧‧ pipeline

Claims (9)

A pretreatment device for cleaning a sample made from a blast furnace and for use with a dust collecting device, the pretreatment device comprising: a blasting unit comprising a working space defining a working space for accommodating the sample a sandblasting cylinder, a nozzle disposed on the sandblasting cylinder for performing sandblasting operation on the sample, and a buffer cylinder respectively communicating the dust collecting device and the working space at both ends, the working space of the sandblasting cylinder can accommodate the sandblasting operation The sand material used, the buffer cylinder can be used to buffer the passing sand material when the dust collecting device sucks the sand material in the working space through the buffer cylinder, so that the light sand material passes and the heavier The sand material falls back into the work space; and a transfer unit is operable to place the sample into the work space. The pretreatment device according to claim 1, wherein the sandblasting cylinder of the sandblasting unit further surrounds an inlet connecting the working space, the transfer unit includes a base connected to the sandblasting cylinder, and a movable setting a conveying link on the base for carrying the sample, the conveying link being operable to move relative to the base between a removal position and a moving in position, the conveying link being in the removed position And the sample is located outside the working space, and in the moving position, the conveying link extends into the inlet to transfer the sample into the working space. The pre-processing device of claim 2, wherein the base of the transfer unit surrounds a shaft hole corresponding to the inlet of the sandblasting cylinder, the conveying link having a shaft extending through the shaft hole a grip portion disposed on the shaft portion away from one end of the inlet, and a bearing portion disposed at the other end of the shaft portion and surrounding a receiving groove for receiving the sample. The pre-processing device of claim 3, wherein the base of the transfer unit has a seat portion surrounding the shaft hole, a drop opening formed on the seat portion, and a connection to the base A surrounding wall portion of the slide portion that communicates with the discharge opening is disposed below the seat portion. When the conveying link is located at the removal position, the bearing portion is located above the discharge opening. The pre-processing device of claim 3, wherein the transport link further has a set of flaps disposed on the shaft portion and abutting the grip portion. The pre-processing device according to claim 2, further comprising a control unit, the control unit comprising a gas source connecting the nozzle and supplying power through the air supply, a switch for controlling whether the gas source supplies air, and a a throttle valve connected to the air source, and a valve disposed on the blasting cylinder and drivable by the throttle valve, the throttle valve driving the valve to move between an open position and a closed position relative to the inlet The valve does not close the inlet when the valve is in the open position, and the valve closes the inlet when the valve is in the closed position. The pre-processing apparatus of claim 6, wherein the control unit further comprises a ball valve connected to the gas source for controlling the time at which the gas supplied by the gas source enters the nozzle. The pre-processing device of claim 6, wherein the switch is a foot switch that can be controlled in a foot-operated manner. The pretreatment device of claim 1, wherein the blasting unit further comprises a stand for the blasting drum.