CN205914373U - 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 the circular -cylinder sieve body of drum sieve, evenly be provided with two at least baffles in the axial of screen frame excircle, set up the support directly over the screen frame of drum sieve, 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 utility model discloses a thereby the length that sets up contact point and the wire rope of hanging top, heavy object and the screen frame of heavy object is the position and the frequency of bounceing of basis weight thing really, thus the protrusion height through setting up the baffle really the basis weight thing bounce the height really the basis weight thing to the dynamics of strikeing of screen frame.

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 sieve cleaning mechanism completing rotary screen by percussion, this Mechanism automatically can effectively control the percussion dynamics to sieve nest and tap frequency, make cleaning effect reach 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.

Further improvement is that of technical solutions of the utility model: described weight is provided with multiple, and multiple weights are suspended on Spacing on frame 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.

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 °.

In sieve nest 1 rotary course, weight 2 taps sieve nest to sieve nest 1 in the way of a contact to rotary screen, and weight 2 is to sieve The frequency that body 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 top from bottom Shaken behind portion 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, weight 2 is provided with multiple, and it is 200 ~ 650mm that multiple weights 2 are suspended on spacing on support 4, Weight 2 here away from the range of most effective to the percussion of sieve nest 1, more than the 650mm spacing then percussion power between two weights 2 Degree is not enough, then leads to two weights 2 too near less than 200mm spacing and leads to percussion power to spend greatly, sieve nest 1 is caused damage, if Put the optimum optimum being 400mm, so ensure that to sieve nest 1 percussion of spacing that weight 2 taps sieve nest 1.

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.

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, 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 ~ 600mm in support 4 centre position；Due to sieve nest 1 pars intermedia The elasticity divided is more than the elasticity of two end portions, taps the potential energy in weight 2 acquisition of sieve nest 1 mid portion and is more than two end portions Weight 2, the dynamics tapping sieve nest 1 mid portion each time is just larger with respect to two end portions, so in the middle of setting sieve nest 1 Partial weight 2 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 mistake to sieve nest 1 Cross percussion, 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.

2. rotary screen according to claim 1 sieve cleaning mechanism it is characterised in that: described weight (2) be provided with multiple, multiple The spacing that weight (2) is suspended on support (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.