CN205914374U - Sieve cleaning mechanism of drum sieve - Google Patents

Abstract

The utility model discloses a sieve cleaning mechanism of drum sieve belongs to the material screening field of trade of making coke, including circular -cylinder sieve body, evenly be provided with two at least baffles in the axial of screen frame excircle, set up the support directly over the screen frame, with the heavy object of wire rope hanging on the support, the distance of baffle protrusion screen frame is 25~35mm, heavy object and screen frame are 150~250mm's below side position point contact at the summit circumferential distance apart from the screen frame, wire rope's length is 1200~1800mm, the heavy object is equipped with a plurality ofly, and a plurality of heavy objects hang length to be changed at 10~200mm's within range, the utility model discloses can control the heavy object strike the position, the frequency of bounceing and the dynamics of strikeing, set different length to through the swing radius with every heavy object, the control heavy object strikes the time point diverse of screen frame, makes the screen frame be in at any time all the state that is strikeed by the clearance, makes the cleaning effect reach the optimum.

Description

The sieve cleaning mechanism of rotary screen

Technical field

This utility model relates to the material screening field of coking industry, especially a kind of sieve cleaning mechanism of rotary screen.

Background technology

During coke-oven plant is used for separating nut coke and coke powder, the sieve aperture using rotary screen is 10mm, runs The moister easy blocking sieve aperture of middle coke powder, conventional sieve cleaning mechanism is comb-tooth-type, and comb-tooth-type sieve cleaning mechanism is continuously carried out to sieve nest Clean with water, so that sieve cleaning mechanism is easily damaged, need to be changed after running a period of time, otherwise just will result in cleaning effect not Good, sieve nest blocks, and impact produces.

Utility model content

This utility model technical issues that need to address are to provide a kind of screen scarifier completing rotary screen by weight percussion Structure, the time point that each weight of this mechanism taps sieve nest is different, makes sieve nest be in the state of all cleaned percussion at any time, makes Cleaning effect reaches optimum.

For solving above-mentioned technical problem, this utility model be the technical scheme is that

The sieve cleaning mechanism of rotary screen it is characterised in that: include the cylindrical shape sieve nest of rotary screen, sieve nest cylindrical axially all Even be provided with least two baffle plates, be arranged on the support directly over the sieve nest of rotary screen, with weight on support for the wire rope suspensioning Thing；The distance that described baffle plate protrudes sieve nest is 25 ~ 35mm, and described weight with sieve nest in the summit circumferential distance apart from sieve nest is The lower section side location point contact of 150 ~ 250mm；The length of described steel wire rope is 1200 ~ 1800mm；Described weight be provided with multiple, The length that multiple weights are suspended on support is different, and it hangs length and changes in the range of 10 ~ 200mm.

Further improvement is that of technical solutions of the utility model: the spacing that the plurality of weight is suspended on support is 200~650mm.

Further improvement is that of technical solutions of the utility model: the spacing that described weight is suspended on support is in support two Each 1/4 position in side is 200 ~ 400mm, and meta is set to 400 ~ 650mm to the spacing that described weight is suspended on support in the bracket.

Due to employing technique scheme, the technological progress that this utility model obtains is:

This utility model pass through to arrange the contact point of hitch point, weight and sieve nest of weight and the length of steel wire rope thus Determine the position of weight and frequency of upspringing, by arranging the protrusion height of baffle plate so that it is determined that the bounce amount of weight can determine that The percussion dynamics to sieve nest for the weight；By the pendulum radius of each weight is arranged to different length, weight is controlled to tap sieve nest Time point different, make sieve nest be in the state of all cleaned percussion at any time, make cleaning effect reach optimum.

Spacing between multiple weights is set to 200 ~ 650mm by this utility model, weight can ensured to sieve nest Tap in effective range it is ensured that cleaning effect；The line space design in centre position for the weight be 400 ~ 650mm, in both sides each 1/4 The spacing of position is 200 ~ 400mm, is to take into full account the cleaning needs turning sieve each several part, concentrates and difficult cleaning part is struck Hit it is ensured that cleaning effect.

Brief description

Fig. 1 is this utility model main structure diagram；

Fig. 2 is this utility model side structure schematic view；

Wherein, 1, sieve nest, 2, weight, 3, steel wire rope, 4, support, 5, baffle plate.

Specific embodiment

As shown in Figure 1 and Figure 2, the sieve cleaning mechanism of rotary screen, including the cylindrical shape sieve nest 1 of rotary screen, cylindrical in sieve nest 1 Axially it is evenly arranged with least two baffle plates 5, be arranged on the support 4 directly over the sieve nest 1 of rotary screen, be suspended in steel wire rope 3 Weight 2 on support 4；Described weight 2 is contacted with sieve nest 1 side point, contact point below the summit of sieve nest 1, and apart from sieve nest 1 Summit circumferential distance be 150 ~ 250mm；The length of described steel wire rope 3 be 1200 ~ 1800mm, when static steel wire rope 3 with vertical The angle of line is 10 ~ 20 °；Described weight 2 is provided with multiple, and multiple weights 2 are suspended on that length on support 4 is different, and it hangs length Degree changes in the range of 10 ~ 200mm, and different suspension length makes sieve nest 1 multiple weights 2 in operation process tap sieve nest 1 Time different, weight 2 can continuous percussion one by one on sieve nest 1, make sieve nest 1 be at cleaned working as all the time In, increase cleaning effect, avoid weight 2 percussion simultaneously can cause excessive shock power to sieve nest 1, it is to avoid to damage sieve nest 1 simultaneously.

As shown in Figure 1 and Figure 2, sieve nest 1 radius being conventionally used for separating coke powder is generally 1.2 ~ 1.8m, and rotary screen Rotating speed be 10 ~ 18 turns per minute, setting weight 2 tap sieve nest 1 position be apart from sieve nest 1 summit circumferential distance be 150 ~ The lower section lateral location of 250mm, that is, weight 2 fall in the side of sieve nest 1, when sieve nest 1 carries adhesive and rotates to summit, taken Band adhesive it is also possible under self gravitation effect, self falling, after adhesive turns over sieve nest 1 summit, adhesive does not just have There is the possible of self falling, tapping sieve nest 1 with external force can make the maximally effective removing of weight 2 be bonded at gluing on sieve nest 1 herein Knot thing.

In sieve nest 1 rotary course, weight 2 is tapped to sieve nest 1 in the way of a contact and carries out clearing up sieve nest 1, and weight 2 is right The frequency that sieve nest 1 taps is that sieve nest 1 every revolution taps at least 2 times, and the adhesive on sieve nest 1 so can be made to go to from bottom Shaken behind top it is ensured that sieve nest 1 not material to be bonded block and being capable of normal work.

As shown in Figure 1 and Figure 2, the quality of weight 2 is 5 ~ 15kg being drawn with steel wire rope 3, weight 2 radius be 1200 ~ Oscillating motion on the circumference of 1800mm, sieve nest 1 peripheral, axial is uniformly arranged at least two baffle plates 5 and protrudes the distance of sieve nest 1 and be 25 ~ 35mm, weight 2 is upspring 80 ~ 120mm by sieve nest 1 baffle plate 5 in rotary course, and the weight 2 upspring is in self gravitation and steel wire Rope 3 the collective effect of centripetal force under circumferentially move 80 ~ 120mm displacement after tap on sieve nest 1；So circulation is just real The quantity equal to baffle plate 5 for the number of times that weight 2 taps sieve nest 1 in sieve nest 1 every revolution, steel wire during weight 2 swing are showed Rope 3 is reduced to 10 ~ 20 ° by 25 ~ 35 °, it is ensured that weight 2 is to sieve nest 1 under the control of weight 2 mass with the angle of vertical line Percussion dynamics.

As shown in Figure 1 and Figure 2, the spacing that the plurality of weight 2 is suspended on support 4 is 200 ~ 650mm, and multiple weights 2 are protected Sieve nest 1 everywhere is all cleaned arrives for card；The spacing of weight 2 is the most effective model that sieve nest 1 is tapped in the range of 200 ~ 650mm Enclose, more than 650mm spacing, then the percussion dynamics between two weights 2 is not enough, then leads to two weights 2 less than 200mm spacing Closely enough height can not be repelled very much, again result in the dynamics deficiency making percussion sieve nest 1, setting weight 2 taps sieve nest 1 Spacing is optimum to be 400mm, so ensure that the maximally effective percussion to sieve nest 1.

As shown in Figure 1 and Figure 2, described weight 2 be suspended on spacing on support 4 each 1/4 position in support 4 both sides be 200 ~ 400mm, the spacing that described weight 2 is suspended on support 4 is 400 ~ 650mm in support 4 centre position；Multiple weights 2 are suspended in Interval on support 4 is different, and on support 4, the interval of mid portion is more than the interval of two end portions, due to sieve nest 1 mid portion Elasticity be more than two end portions elasticity, tap sieve nest 1 mid portion weight 2 obtain potential energy be more than two end portions weight Thing 2, the dynamics tapping sieve nest 1 mid portion each time is just larger with respect to two end portions, so setting sieve nest 1 pars intermedia The weight 2 dividing is less than the weight 2 of sieve nest 1 two end portions, makes the percussion dynamics that sieve nest 1 obtains uniform, it is to avoid the transition to sieve nest 1 Tap, while the protection sieve nest 1 of maximum possible, complete cleaning work.

Claims (3)

1. rotary screen sieve cleaning mechanism it is characterised in that: include rotary screen cylindrical shape sieve nest (1), in the axle that sieve nest (1) is cylindrical To being evenly arranged with least two baffle plates (5), it is arranged on the support (4) directly over the sieve nest (1) of rotary screen, with steel wire rope (3) It is suspended in the weight (2) on support (4)；The distance that described baffle plate (5) protrudes sieve nest (1) is 25 ~ 35mm, described weight (2) with The lower section side location point contact that sieve nest (1) is 150 ~ 250mm in the summit circumferential distance apart from sieve nest (1)；Described steel wire rope (3) length is 1200 ~ 1800mm；Described weight (2) is provided with multiple, and multiple weights (2) are suspended on length on support (4) not With it hangs length and changes in the range of 10 ~ 200mm.

2. rotary screen according to claim 1 sieve cleaning mechanism it is characterised in that: the plurality of weight (2) is suspended on Spacing on frame (4) is 200 ~ 650mm.

3. rotary screen according to claim 2 sieve cleaning mechanism it is characterised in that: described weight (2) is suspended on support (4) On spacing be 200 ~ 400mm in each 1/4 position in support (4) both sides, the spacing that described weight (2) is suspended on support (4) exists Support (4) centre position is 400 ~ 650mm.