KR102308592B1 - Apparatus for crushing and sterilizing medical waste - Google Patents

Abstract

Disclosed is a sterile crusher that can be installed in a low place and is easy to repair and replace a crushing unit. The crushing device includes an input unit for supplying medical waste, a accommodating unit for accommodating the medical waste supplied by the input unit, a pressurizing unit installed on the accommodating unit to pressurize the received medical waste by its own weight, the It includes a crushing unit for crushing the medical waste supplied by the pressurizing unit, a sterilizing unit for sterilizing and drying the medical waste crushed by the crushing unit, and a discharge unit for discharging the sterilized and dried medical waste.

Description

Apparatus for crushing and sterilizing medical waste

The present invention relates to a sterile crushing device for medical waste, and more particularly, to a sterile crushing device that can be installed at a low height and can be easily repaired and replaced with a crushing unit.

In general, hospitals and other medical wastes, such as syringes and rubber gloves, generated by medical treatment for patients are placed in medical waste bags and transported to the outside, and most are disposed of by incineration.

This incineration treatment method has the disadvantage that it has to be transferred from the hospital to a certain area where there is an incineration facility, and the incineration cost is rather expensive. .

For example, according to Korean Patent Registration No. 10-1779296, a device for sterilization and drying is provided by installing three screws, supplying steam to the first screw, and installing microwaves to the second and third screws.

In addition, Korean Patent Registration No. 10-1117069 is a method of sterilizing pulverized medical waste with high-temperature pressure steam, and is composed of a malodor removal device that removes odors generated in the heat treatment unit, and Korean Patent Registration No. 10-1801738 No. is a small-scale treatment device and presents a treatment device that sterilizes under reduced pressure and high temperature.

In addition, Korean Patent Registration No. 10-1973458 proposes a sterile grinder that can be replaced or maintained by detachably detaching only the shredder when the shredder breaks down as it is detachably equipped with a shredder for crushing medical waste.

However, according to this prior art, there is a problem that the lid of the hopper into which the medical waste is put is opened upward, so that a sufficient height must be secured at the installation site.

In addition, blades and motors are used to supply medical wastes from the hopper to the crusher, and the shaft is bent or the bearings are bent due to frequent jams or constant pressure by the motor. There is a problem in safety and hygiene because a worker must enter the hopper contaminated with medical waste to solve the problem or periodically clean the inside.

In addition, when the crusher is to be replaced or repaired, there is a problem that not only is sufficient space not secured for direct repair on site, but also the operation is difficult and time consuming because the crusher must be lifted using a separate transport machine.

Accordingly, it is an object of the present invention to provide a sterile grinding device that can be installed even at a low height.

Another object of the present invention is to provide a sterile crushing device capable of smoothly supplying medical waste from the receiving unit to the crushing unit.

Another object of the present invention is to provide a sterile crusher capable of directly replacing or repairing a crushing unit in the field.

The above object, the input unit for supplying medical waste; a receiving unit for accommodating the medical waste supplied by the input unit; a pressurizing unit installed on the receiving unit to pressurize the accommodated medical waste by its own weight; a crushing unit for crushing the medical waste supplied by the pressurizing unit; a sterilization unit for sterilizing and drying the medical waste pulverized by the crushing unit; and a discharge unit for discharging the sterilized and dried medical waste.

Preferably, the pressing unit includes: a cover protruding to a predetermined height on the upper portion of the receiving unit; bearing brackets installed in pairs on both sides of the cover; a rotating shaft having both ends coupled to the bearing bracket; a cylinder having one end linked to the rotation shaft and the other end pivotably fixed to the upper portion of the receiving unit; a lift arm having an upper end coupled to the rotation shaft and hinged to each other in an X shape; and a press weight coupled to a lower end of the lift arm, wherein each link bar intersecting in an X shape is hinged at an intersection point and an end point to expand downward or contract upward.

Preferably, the press weight, a base weight of a single body; and at least one or more additional weights laminated and coupled on the base weight. A portion of the additional weight is cut to expose a bracket coupled to the base weight and coupled to the other end of the lift arm.

Preferably, the crushing unit comprises: a support frame; drive motor; a main rotating shaft shaft-coupled to the driving motor and a secondary rotating shaft connected to the main rotating shaft by gear coupling; a crushing blade coupled to each of the rotation shafts; a crushing box accommodating the crushing blade; a joint separably coupled between the crushing box and the hopper; and a moving roller installed on the frame to expand or fold up and down, wherein when the moving roller is unfolded, the frame is spaced apart from the ground.

Preferably, a stuffing box is installed at a portion where each of the rotation shafts is in contact with the crushing box to form a boundary, and more preferably, the stuffing box is a single unit having a through hole fitted into the rotation shaft. body; a Teflon plate and a steel plate fitted to a portion in which the front surface of the body and the crushing box are in contact; and an oilless bearing and an oil seal fitted between the rotating shaft and the rear of the body.

According to the present invention, since the feeding door is installed on one side of the hopper and opened and closed in the horizontal direction, it can be installed even at a low height.

In addition, since the medical waste is pressurized by the weight of the press weight descending by its own weight, the medical waste can be smoothly supplied to the crushing unit.

In addition, since the crushing unit can be separated in a simple way and moved in the horizontal direction, the crushing unit can be directly replaced or repaired in the field.

1 shows a sterile grinding device according to an embodiment of the present invention.
Fig. 2(a) shows the structure of the pressurizing unit, and Fig. 2(b) shows the operation of the pressurizing unit.
3 shows a press waiter.
4 shows a crushing unit applied to the present invention.
5 shows a stuffing box.
6 (a) to 6 (c) shows the process of repairing the crushing unit.

It should be noted that the technical terms used in the present invention are only used to describe specific embodiments, and are not intended to limit the present invention. In addition, the technical terms used in the present invention should be interpreted as meanings generally understood by those of ordinary skill in the art to which the present invention belongs, unless otherwise defined in particular in the present invention, and excessively comprehensive It should not be construed in the meaning of a human being or in an excessively reduced meaning.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 shows a sterile grinding device according to an embodiment of the present invention.

The sterilization and crushing device of the present invention is installed on the upper portion of the input unit 100 for supplying medical waste, the receiving unit 200 for accommodating the medical waste supplied by the input unit 100, and the receiving unit 200. Pressurizing unit 300 for pressurizing medical waste by its own weight, crushing unit 400 for crushing medical waste supplied by pressurizing unit 300, sterilizing and drying medical waste crushed by crushing unit 400 It includes a sterilization unit 500, and a discharge unit 600 for discharging sterilized and dried medical waste.

Optionally, it may be provided with a ball-type tester, and it is possible to monitor, record and transmit data of the sterilization unit 500 in order to verify the sterilization ability of the sterilization unit 500 and determine whether the sterilization unit 500 is abnormal. have.

The tester may include a data measuring instrument and recorder such as temperature and humidity, a wireless transmitter and a battery, and a spore test kit. can be measured, recorded and transmitted, and emit a periodic beep to facilitate collection.

Insert the tester into the inlet of the sterilization unit 500, collect it from the waste outlet of the discharge unit 600, and inspect whether the spores are sterilized. If the sterilization test is not passed, the waste is recovered and reprocessed.

Hereinafter, each component will be described in detail with reference to the drawings.

[Input unit (100)]

The input unit 100 includes a basket 110 containing medical waste (hereinafter, simply referred to as 'waste'), and a guide rail 112 for guiding the basket 110 so as to move up and down.

The guide rail 112 may be installed on the side of the support frame 10, and as indicated by an arrow, the basket 110 at the top rotates at a predetermined angle to put the waste into the accommodation unit 200. .

If necessary, a detection sensor for detecting the position of the basket 110 ascending and descending along the guide rail 112 may be installed at the upper end and the lower end of the guide rail 112 , respectively.

[Accommodation unit (200)]

The accommodation unit 200 includes a hopper 220 having an accommodation space therein, a feeding door 210 provided on one side of the hopper 220, and a negative pressure generator that maintains the inside of the hopper 220 at a negative pressure ( 230) is composed.

In this embodiment, the feeding door 210 is installed on one side of the hopper 220 and opened and closed in the horizontal direction. Compared with the structure in which the lid of the conventional hopper is opened and closed upward, the overall height of the sterilization crusher can be lowered. have.

For example, when the feeding door 210 is opened for waste supply by installing an air curtain, it is possible to prevent the non-sterile air inside the hopper 220 from being exposed to the outside, and the inside of the hopper 220 is Before the feeding door 220 is opened, it is opened after sterilization by spraying steam and water.

The negative pressure generator 230 sucks the inside of the hopper 220 and maintains it at a negative pressure to prevent the fine dust inside from being discharged to the outside when the feeding door 210 is opened, and the sucked air is discharged to the outside through a filter, for example. is emitted

[Pressure unit 300]

Fig. 2(a) shows the structure of the pressurizing unit, and Fig. 2(b) shows the operation of the pressurizing unit.

The pressurizing unit 300 includes a cover 302 protruding to a predetermined height on the upper portion of the hopper 220, a bearing bracket 321 installed in pairs on both sides of the cover 302, and a bearing bracket 321 facing each other. A rotary shaft 322 having both ends coupled to it, a cylinder 310 having one end linked to the rotary shaft 322, a lift arm 320 having an upper end coupled to the rotary shaft 322 and hinged in an X shape with each other, and a lift arm 320 It consists of a press weight coupled to the lower end of the (press weight, 330).

The cover 302 may couple the upper plate to the side plate, and in particular, make the upper plate transparent so that the inside can be seen.

One end of the cylinder 310 is linked to the rotation shaft 322 and the other end is pivotably fixed to the upper portion of the hopper 220 via a bracket.

In addition, the lift arm 320 may be unfolded downwardly or contracted upwardly by hinged engagement of each link bar crossing the X-shape at an intersection point and an end point.

3 shows a press waiter.

The press weight 330 is a plurality of additional weights 332 indicated by hatching on the base weight 331 of a single body, in this embodiment, four additional weights 332 are coupled by anchor bolts 335. and a portion of the additional weight 332 is cut so that the bracket 333 coupled to the base weight 331 located at the lower portion is exposed.

Accordingly, the lower end of the lift arm 320 is coupled to the bracket 333 fixed to the base weight 331, and in this state, a required number of additional weights 332 are stacked to determine the weight of the press weight 330. .

According to this structure, when the control unit (not shown) removes the operating and supporting force of the cylinder 310 as indicated by the arrow in FIG. ) rotates as indicated by an arrow by the weight of the press weight 330 , and as a result, the lift arm 320 having one end fixed to the rotation shaft 322 is spread downward by the weight of the press weight 330 .

As a result, the press weight 330 coupled to the lift arm 320 presses the waste to a constant pressure.

According to this structure, compared to the conventional method using a blade and a motor, there is no waste or deformation of the components inside the hopper, so that the operator does not need to enter the hopper.

In addition, energy consumption can be reduced because the waste is pressurized using the weight of the press weight.

In addition, it is possible to easily control the pressure applied to the waste by appropriately adjusting the weight of the press weight.

[Crushing unit 400]

4 shows a crushing unit applied to the present invention.

The crushing unit 400 includes a driving motor 420 , a main rotating shaft 422 axially coupled to the driving motor 420 , a secondary rotating shaft 423 connected to the main rotating shaft 422 by gear coupling, and a rotating shaft 422 . , is composed of a crushing blade 440 coupled to each of the 423).

The crushing unit 400 is supported by a frame 401 , and a moving roller 402 that expands or folds up and down is installed on the frame 401 .

The main/minor rotation shafts 422 and 423 are rotatably supported on the bearing bracket 412, respectively, and may be gear-coupled to each other via, for example, a spur gear.

In this way, by separating and installing the rotation shafts 422 and 423 in two rows, individual repair for each axis is possible, the installation space can be reduced, and on-site repair is possible.

The crushing blade 440 is accommodated in the rectangular crushing box 431, and a joint 432 for coupling with the hopper 220 is detachably coupled to the upper portion of the crushing box 431, as will be described later, the joint ( 432 operates as a gap that can move the crushing unit 400 upward.

A stuffing box 450 is installed at a portion where the rotation shafts 422 and 423 come into contact with the crushing box 431 and form a boundary to prevent the leakage of particles or liquids generated during the crushing process.

5 shows a stuffing box.

A single body 451 having a through hole fitted therein to be fitted into the rotation shafts 422 and 423 is coupled to the side of the crushing box 431, for example, by a bolt 457.

A Teflon plate 453 and a steel plate 454 are stacked and fitted in a portion where the front surface of the body 351 and the crushing box 431 are in contact, and between the rotating shafts 422 and 423 at the rear of the body 351 . The oilless (oilless) bearing 452 and the oil seal 456 are fitted, and a failure due to lubrication is fundamentally blocked by the oilless bearing 452 .

In particular, the oil seal 456 and the O-ring 455 prevent leakage of liquid generated during crushing or steam used during sterilization from flowing into the crushing box 431 .

6 (a) to 6 (c) shows the process of repairing the crushing unit.

Referring to FIG. 6 (a), the bolts of the joint 432 interposed between the crushing box 431 and the hopper 220 of the crushing unit 400 are loosened and separated.

By doing this, a gap is provided between the hopper 220 and the crushing unit 400 having a fixed position, so that the crushing unit 400 can be moved upward.

6 (b), the inlet pipe 522 connecting between the sterilization body 520 and the crushing unit 400 of the sterilization unit 500 is separated from the crushing unit 400, and the crushing unit 400 Spread the moving roller 402 installed on the frame 401 of the downwardly so that the lower end of the frame 401 is spaced apart from the ground.

At this time, as described above, since the inlet pipe 522 and the crushing unit 400 of the sterilization unit 500 are in a separated state, the hopper 220 and the crushing unit 400 as the moving roller 402 is spread downward. The crushing unit 400 is able to climb into the gap formed therebetween.

In this state, the crushing unit 400 may be moved in the horizontal direction by rolling the moving roller 402, and then the crushing blade 440 of the crushing unit 400 may be replaced or repaired or other parts may be replaced. .

Therefore, the crushing unit can be moved to the side and repaired in the field without the need for a separate transport machine, so that the sterilization crusher can be installed efficiently even in a narrow place.

[Sterilization unit (500)]

The sterilization unit 500 is composed of a long tube-shaped body 520 , a driving device 510 installed at one end of the body, and a microwave generator 530 installed on the side of the body 520 .

The sterilization unit 500 of the present invention has a structure in which wastes in a sterilized state and steam generated during the sterilization process are not exposed to the outside.

Sterilization is performed using microwaves by the microwave generator 530 and superheated steam by a steam generator (not shown), maintaining the internal temperature of the sterilization unit 500 above a certain level and supplying appropriate moisture to the waste at the same time. Increases the water heating effect by the microwave generator (530).

The main body 520 is separated and coupled in three stages to facilitate maintenance by being coupled with a flange and a gasket interposed therebetween. Similarly, the shaft and the screw inside the body 520 are also separably coupled in three stages.

Although the above description has been focused on the embodiments of the present invention, it goes without saying that various changes may be made at the level of those skilled in the art. Therefore, the scope of the present invention cannot be construed as being limited to the above-described embodiments, and should be construed by the claims described below.

100: input unit
110: waste basket
112: guide rail
200; accommodating unit
210: feeding door
220: hopper
230; sound pressure generator
300: pressurization unit
400: crushing unit
500; sterilization unit
600: discharge unit

Claims (6)

an input unit having a basket containing medical waste, and a guide rail for guiding the basket to be raised and lowered;
a receiving unit having a hopper having a receiving space therein, a feeding door provided on one side of the hopper and contacting the inlet of the basket, and a negative pressure generator for maintaining the inside of the hopper at a negative pressure;
a pressurizing unit installed on the receiving unit to pressurize the accommodated medical waste by its own weight;
a crushing unit installed and supported on a frame installed with a moving roller that expands or folds up and down, is detachably coupled to a lower portion of the accommodation unit through a joint, and crushes the medical waste supplied by the pressurizing unit;
a sterilization unit detachably coupled to the crushing unit and sterilizing and drying the medical waste crushed by the crushing unit; and
and a discharge unit for discharging the sterilized and dried medical waste,
The shredding unit is separated from the joint and the sterilization unit, and the medical waste sterilization crushing device, characterized in that it is moved in the horizontal direction by the moving roller. an input unit for supplying medical waste;
a receiving unit for accommodating the medical waste supplied by the input unit;
a pressurizing unit installed on the receiving unit to pressurize the accommodated medical waste by its own weight;
a crushing unit detachably coupled to a lower portion of the receiving unit through a joint, and crushing the medical waste supplied by the pressurizing unit;
a sterilization unit detachably coupled to the crushing unit and sterilizing and drying the medical waste crushed by the crushing unit; and
and a discharge unit for discharging the sterilized and dried medical waste,
The pressurizing unit,
a cover protruding to a predetermined height on the upper portion of the receiving unit;
a rotation support shaft having both ends coupled to bearing brackets installed in pairs on both sides of the cover;
a cylinder having one end linked to the rotation support shaft and the other end pivotably fixed to the upper portion of the receiving unit;
a lift arm having an upper end coupled to the rotation support shaft and hinged to each other in an X shape; and
It consists of a press weight coupled to the lower end of the lift arm,
When the cylinder controls the cylinder to remove the force constraining the lift arm through the rotation support shaft, the press weight falls by its own weight and forcibly pushes the medical waste into the crushing unit. Waste sterilization crusher. In claim 2,
The press weight is
single body base weight; and
Consists of at least one or more additional weights laminated on the base weight,
A portion of the additional weight is cut so that a bracket coupled to the base weight and coupled to the other end of the lift arm is exposed. In claim 2,
The crushing unit is
support frame;
drive motor;
a main rotating shaft shaft-coupled to the driving motor and a secondary rotating shaft connected to the main rotating shaft by gear coupling;
a crushing blade coupled to each of the rotation shafts;
a crushing box accommodating the crushing blade;
a joint interposed between the crushing box and the hopper of the accommodation unit and detachably coupled; and
It is installed on the frame and includes a moving roller that expands or folds up and down,
When the moving roller is unfolded, the frame is a sterile crushing device for medical waste, characterized in that spaced apart from the ground. In claim 4,
A sterilization and crushing apparatus for medical waste, characterized in that a stuffing box is installed at a portion where each of the rotation shafts is in contact with the crushing box and forms a boundary. In claim 5,
The stuffing box is
a single body having a through hole fitted therein to be fitted to the rotating shaft;
a Teflon plate and a steel plate fitted to a portion in which the front surface of the body and the crushing box are in contact; and
Sterilizing and crushing apparatus for medical waste, characterized in that it comprises an oilless bearing and an oil seal fitted between the rotating shaft and the rear of the body.

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