CN112979127A - Sludge treatment device and treatment method thereof - Google Patents

Abstract

The invention discloses a sludge treatment device and a treatment method thereof, belonging to the technical field of sludge treatment, and being capable of realizing the arrangement of a specially-made pre-buried treatment rod and a matched treatment method, wherein the treatment method is provided according to the scheme, after sludge is treated by using the pre-buried treatment rod, when the sludge is settled, a settlement filler can spontaneously expand and extrude an elastic membrane, so that the elastic membrane is protruded outwards, the outward protrusion of the elastic membrane can play a role in filling the sludge and can extrude the sludge settled downwards, thereby driving the sludge settled downwards to ascend upwards, further repairing the settlement of the sludge, preventing the surface of the original soil layer from collapsing, greatly improving the safety performance, and a water seepage and sinking prevention plate is combined with a supporting block, so that the effective support can be played for the original soil layer on the premise of not influencing the permeation of water in soil, and the influence of the sludge settlement on the original soil layer can be greatly reduced, thereby further preventing the surface of the original soil layer from collapsing and greatly improving the practicability.

Description

Sludge treatment device and treatment method thereof

Technical Field

The invention relates to the technical field of sludge treatment, in particular to a sludge treatment device and a treatment method thereof.

Background

At present, sludge treatment and disposal methods at home and abroad are numerous, and a specific treatment flow is generally combined by adopting a certain method of different treatment and disposal methods such as concentration, digestion, dehydration, drying, incineration, composting, landfill and the like. In sludge treatment, two methods of concentration and dehydration are generally included, and a plurality of options are available for a subsequent treatment method. The selection of the sludge treatment process is closely related to the selection of the sludge treatment method, and different combination modes can be provided.

The selection of the sludge disposal method is restricted by local conditions such as nature, economy, politics and the like, and for cities which have abundant land resources and little rainfall and large evaporation capacity, the sludge is usually concentrated and dewatered firstly, and then the sludge is dug to fill the pit and bury the sludge. Therefore, we propose a sludge treatment device and a treatment method thereof.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a sludge treatment device and a treatment method thereof, which can realize the arrangement of a specially-made pre-buried treatment rod and a matched treatment method, and provide the treatment method according to the scheme, after the sludge is treated by using the pre-buried treatment rod, when the sludge is settled, a settlement filler can spontaneously expand and extrude an elastic membrane to enable the elastic membrane to bulge outwards, the outward bulge of the elastic membrane can play a role in filling and can extrude the downward-settled sludge so as to drive the downward-settled sludge to rise upwards and further repair the settlement of the sludge, prevent the surface of the original soil layer from collapsing, greatly improve the safety performance, and the water seepage and settlement preventing plate is combined with a supporting block to play an effective support for the original soil layer on the premise of not influencing the seepage of water in the soil so as to further prevent the surface of the original soil layer from collapsing, the practicability is greatly improved.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A sludge treatment device comprises a pre-buried treatment rod and two water seepage anti-settling plates, wherein the pre-buried treatment rod comprises a hollow rod body, a sensing and sinking annular plate is sleeved on the outer side of the hollow rod body, a fixed plate is fixedly connected to the inner wall of the hollow rod body, a supporting spring is fixedly connected to the top of the fixed plate, a linkage block is fixedly connected to the top end of the supporting spring, linkage rods are fixedly connected to the outer walls of two sides of the linkage block, a linkage gear is rotatably connected to the inner wall of one side of the back of the hollow rod body, a driving rack and a driven rack are respectively meshed to two sides of the linkage gear, a connecting plate is arranged above the linkage gear, a plurality of hole blocking blocks which are uniformly distributed in an annular shape are fixedly connected to the top of the connecting plate, a plurality of water inlet holes are formed in the outer wall of the top end of the hollow rod body, a plurality of, the outer wall of the hollow rod body is embedded with a plurality of elastic membranes which are uniformly distributed in an annular shape, the elastic membranes are arranged below the fixed plate, a sedimentation filler is filled below the fixed plate, two pairs of supporting blocks are arranged on the hollow rod body, and each pair of supporting blocks are fixedly connected to the outer walls of two sides of the hollow rod body respectively.

Furthermore, the infiltration anti-settling plate comprises a packaging net, broken stones are filled in the packaging net, connecting holes matched with the hollow rod bodies are formed in the middle of the packaging net, the particle size of the broken stones is 1-2cm, water in the soil can penetrate through the packaging net and the broken stones downwards, and the broken stones are connected with the supporting block in a combined mode, so that the infiltration anti-settling plate can play an effective support for an original soil layer on the premise of not influencing the penetration of the water in the soil, the influence of sludge settlement on the original soil layer is greatly reduced, the surface collapse of the original soil layer can be effectively prevented, and the safety performance is greatly improved.

Furthermore, the outer walls of the two sides of the hollow rod body are provided with sliding grooves matched with the linkage rods, the linkage rods penetrate through the sliding grooves in a sliding mode and extend to the position where the linkage rods are fixedly connected with the sensing sinking annular plates, and in the process of filling sludge, the sludge above the sensing sinking annular plates can downwards press the sensing sinking annular plates, so that the linkage blocks are downwards moved through the linkage rods, and the supporting springs are contracted.

Furthermore, one end of the driving rack is fixedly connected with the linkage block, one end of the driven rack is fixedly connected with the connecting plate, the driving rack can be driven to move downwards by the downward movement of the linkage block, and the connecting plate can be driven to move upwards under the transmission action of the linkage gear and the driven rack.

Further, equal fixedly connected with slide rail on the outer wall of hollow barred body both sides, the both ends of connecting plate respectively with two slide rail sliding connection, the slide rail can play a direction and prevent partially effect, prevents that the connecting plate from taking place the skew at the in-process that removes to prevent the plug hole piece and inlet opening dislocation.

Further, the inlet opening and stifled hole piece phase-match, and the inlet opening equals and the one-to-one with stifled hole piece quantity, when filling mud, the rebound of connecting plate can drive stifled hole piece rebound to make the stifled hole piece insert the inlet opening, block up the inlet opening, and when mud takes place to subside, the mud of top can flow downwards, make the heavy annular plate of sense bear the weight reduction of mud, thereby make supporting spring kick-back, drive linkage piece rebound, and then drive stifled hole piece rebound and break away from the inlet opening, make the inlet opening switch on.

Furthermore, the elastic membrane is made of elastic rubber materials, the sedimentation filler is made of water-absorbing expansion materials, when sludge is settled and the water inlet holes are communicated, water in an original soil layer can flow into the hollow rod body through the water inlet holes firstly and then flows into the sedimentation filler through the water seepage holes, so that the sedimentation filler absorbs water and expands, the expansion of the sedimentation filler can extrude the elastic membrane outwards, the elastic membrane is enabled to be outwards protruded, the outwards protruded part of the elastic membrane can play a filling role and can extrude the sludge settled downwards, and then the sludge settled downwards is driven to upwards rise.

A treatment method of a sludge treatment device comprises the following steps:

s1, concentrating and dehydrating the sludge;

s2, excavating the in-situ soil at the landfill site to form a landfill pit, wherein the landfill pit is set to be cylindrical and matched with the water seepage anti-sinking plate;

s3, putting a water seepage anti-sinking plate to the bottom of the landfill pit;

s4, inserting the pre-buried treatment rod into the landfill pit, enabling the bottom end of the pre-buried treatment rod to penetrate through the water seepage anti-settling plate in the S and be inserted into the soil below the landfill pit until the supporting block below abuts against the water seepage anti-settling plate;

s5, filling the sludge treated in the step S1 into a landfill pit until the height of the sludge is flush with the supporting block above the sludge;

s6, sleeving the other water seepage and sinking prevention plate on the outer wall of the embedded treatment rod, and enabling the other water seepage and sinking prevention plate to be abutted against the supporting block above the embedded treatment rod;

and S7, taking the in-situ soil dug out in the part S2, and filling the in-situ soil into the landfill pit until the landfill pit is filled and leveled to form an original soil layer.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) the scheme is provided with a specially-made pre-buried treatment rod and a matched treatment method, the treatment method is provided according to the scheme, after the sludge is treated by using the pre-buried treatment rod, when the sludge is settled, the settlement filler can spontaneously expand to extrude the elastic membrane, so that the elastic membrane is outwards protruded, the outward protrusion of the elastic membrane can play a role in filling, and can extrude the sludge which is settled downwards, so that the sludge which is settled downwards is driven to ascend upwards, the settlement of the sludge is further repaired, the collapse of the surface of the original soil layer is prevented, the safety performance is greatly improved, the water seepage and settlement preventing plate is combined with the supporting block, an effective support can be played for the original soil layer on the premise of not influencing the permeation of water in the soil, the collapse of the surface of the original soil layer is further prevented, and the practicability is greatly improved.

(2) The outer walls of the two sides of the hollow rod body are provided with sliding grooves matched with the linkage rods, the linkage rods penetrate through the sliding grooves in a sliding mode and extend to and sense the sinking annular plates to be fixedly connected, and in the process of filling sludge, the sludge above the sensing sinking annular plates can downwards press the dynamic sinking annular plates, so that the linkage blocks are downwards pressed through the linkage rods, the linkage blocks downwards move, and the supporting springs are contracted.

(3) One end of the driving rack is fixedly connected with the linkage block, one end of the driven rack is fixedly connected with the connecting plate, the driving rack can be driven to move downwards by the downward movement of the linkage block, and the connecting plate can be driven to move upwards under the transmission action of the linkage gear and the driven rack.

(4) Equal fixedly connected with slide rail on the outer wall of hollow barred body both sides, the both ends of connecting plate respectively with two slide rail sliding connection, the slide rail can play a direction and prevent partially effect, prevents that the connecting plate from taking place the skew at the in-process that removes to prevent the plug hole piece and inlet opening dislocation.

(5) Inlet opening and plugged hole piece phase-match, and the inlet opening equals and the one-to-one with plugged hole piece quantity, when filling mud, the rebound of connecting plate, can drive plugged hole piece rebound, thereby make plugged hole piece insert the inlet opening, with the inlet opening jam, and when mud takes place to subside, the mud of top can flow downwards, make to feel heavy the weight reduction that the annular plate bore mud, thereby make supporting spring kick-back, drive linkage piece rebound, and then drive plugged hole piece rebound and break away from the inlet opening, make the inlet opening switch on. The elastic membrane is made of elastic rubber materials, the sedimentation filler is made of water-absorbing expansion materials, when sludge is settled and water inlet holes are communicated, water in an original soil layer can flow into the hollow rod body through the water inlet holes firstly and then flows into the sedimentation filler through the water seepage holes, so that the sedimentation filler absorbs water to expand, the expansion of the sedimentation filler can extrude the elastic membrane outwards, the elastic membrane is enabled to be protruded outwards, the outward protrusion of the elastic membrane can play a filling role and can extrude the sludge settled downwards, and then the sludge settled downwards is driven to rise upwards.

(6) The water seepage anti-settling plate comprises a packaging net, wherein broken stones are filled in the packaging net, a connecting hole matched with the hollow rod body is formed in the middle of the packaging net, the particle size of the broken stones is 1-2cm, water in soil can penetrate through the packaging net and downwards penetrate through the broken stones, and the supporting block is combined in parallel, so that the water seepage anti-settling plate can effectively support an original soil layer on the premise of not influencing the penetration of the water in the soil, the influence of sludge settlement on the original soil layer is greatly reduced, the surface collapse of the original soil layer can be effectively prevented, and the safety performance is greatly improved.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic cross-sectional view of the hollow body of the present invention;

FIG. 3 is an enlarged view of the structure of FIG. 2 at A according to the present invention;

FIG. 4 is a schematic cross-sectional view of the water-permeable anti-settling plate of the present invention;

fig. 5 is a schematic sectional structure of the present invention in operation.

The reference numbers in the figures illustrate:

101. a hollow rod body; 102. a sinkage sensing annular plate; 103. a fixing plate; 104. a support spring; 105. a linkage block; 106. a linkage rod; 107. a chute; 108. a linkage gear; 109. a driving rack; 110. a driven rack; 111. a connecting plate; 112. a hole plugging block; 113. a water inlet hole; 114. a slide rail; 115. a water seepage hole; 116. an elastic film; 117. a support block; 002. a water seepage anti-sinking plate; 201. packaging the net; 202. crushing stone; 203. and connecting the holes.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1-5, a sludge treatment device comprises an embedded treatment rod and two water seepage anti-settling plates 002, the embedded treatment rod comprises a hollow rod 101, a sinking sensing annular plate 102 is sleeved outside the hollow rod 101, a fixing plate 103 is fixedly connected to the inner wall of the hollow rod 101, a supporting spring 104 is fixedly connected to the top of the fixing plate 103, a linkage block 105 is fixedly connected to the top end of the supporting spring 104, linkage rods 106 are fixedly connected to the outer walls of the two sides of the linkage block 105, sliding grooves 107 matched with the linkage rods 106 are formed in the outer walls of the two sides of the hollow rod 101, the linkage rods 106 slidably penetrate through the sliding grooves 107 and extend to be fixedly connected with the sinking sensing annular plate 102, during the process of filling sludge, the sludge above the sinking sensing annular plate 102 presses the sinking sensing annular plate 102 downwards, so that the linkage block 105 is pressed downwards through the linkage rods 106 to enable the linkage block 105 to move downwards, and the supporting spring 104 is contracted, the inner wall of one side of the back of the hollow rod body 101 is rotatably connected with a linkage gear 108, two sides of the linkage gear 108 are respectively engaged with a driving rack 109 and a driven rack 110, a connecting plate 111 is arranged above the linkage gear 108, one end of the driving rack 109 is fixedly connected with a linkage block 105, one end of the driven rack 110 is fixedly connected with the connecting plate 111, the linkage block 105 moves downwards to drive the driving rack 109 to move downwards, the connecting plate 111 can be driven to move upwards under the transmission action of the linkage gear 108 and the driven rack 110, the top of the connecting plate 111 is fixedly connected with a plurality of hole blocking blocks 112 which are uniformly distributed in a ring shape, the outer wall of the top of the hollow rod body 101 is provided with a plurality of water inlet holes 113, the outer walls of two sides of the hollow rod body 101 are respectively and fixedly connected with a sliding rail 114, two ends of the connecting plate 111 are respectively and slidably connected with the two sliding rails 114, and the sliding, prevent that connecting plate 111 from taking place the skew at the in-process that removes, thereby prevent that stifled hole piece 112 and inlet opening 113 misplace, inlet opening 113 and stifled hole piece 112 phase-match, and inlet opening 113 equals and one-to-one with stifled hole piece 112 quantity, when filling mud, the rebound of connecting plate 111, can drive stifled hole piece 112 rebound, thereby make stifled hole piece 112 insert inlet opening 113, stop up inlet opening 113, and when mud takes place to subside, the mud of top can flow downwards, make and feel heavy the weight reduction that annular plate 102 bore mud, thereby make supporting spring 104 kick-back, drive linkage piece 105 rebound, and then drive stifled hole piece 112 rebound and break away from inlet opening 113, make inlet opening 113 in order to switch on.

Referring to fig. 1-2, a plurality of water seepage holes 115 penetrating through the fixing plate 103 are formed on the fixing plate 103, a plurality of elastic membranes 116 uniformly distributed in a ring shape are embedded on the outer wall of the hollow rod 101, the elastic membranes 116 are arranged below the fixing plate 103, a sedimentation filler is filled below the fixing plate 103, the elastic membranes 116 are made of elastic rubber materials, the sedimentation filler is made of water-absorbing expansion materials, when the sludge is settled and the water inlet 113 is communicated, the water in the original soil layer can flow into the hollow rod body 101 through the water inlet 113, then flows into the sedimentation filler through the water seepage holes 115 to ensure that the sedimentation filler absorbs water and expands, the expansion of the sedimentation filler can extrude the elastic membrane 116 outwards to ensure that the elastic membrane 116 bulges outwards, and the outward bulge of the elastic membrane 116 can play a role in filling and can extrude the sludge which is sedimentated downwards, thereby driving the sludge which is sedimentated downwards to rise upwards.

Referring to fig. 1 and 4-5, two pairs of supporting blocks 117 are arranged on the hollow rod 101, each pair of supporting blocks 117 is respectively and fixedly connected to the outer walls of the two sides of the hollow rod 101, the water seepage anti-settling plate 002 comprises a packaging net 201, broken stones 202 are filled in the packaging net 201, a connecting hole 203 matched with the hollow rod 101 is formed in the middle of the packaging net 201, the particle size of the broken stones 202 is 1-2cm, water in soil can penetrate through the packaging net 201 and the broken stones 202 downwards, and the supporting blocks 117 are combined in parallel, so that the water seepage anti-settling plate 002 can effectively support an original soil layer on the premise of not influencing the penetration of the water in the soil, the influence of sludge settlement on the original soil layer is greatly reduced, the surface of the original soil layer can be effectively prevented from collapsing, and the safety performance is greatly improved.

Referring to fig. 1-5, a method for treating sludge treatment equipment includes the following steps:

s1, concentrating and dehydrating the sludge;

s2, excavating the in-situ soil at the landfill site to form a landfill pit, wherein the landfill pit is set to be cylindrical and matched with the water seepage anti-settling plate 002;

s3, putting a water seepage anti-settling plate 002 to the bottom of the landfill pit;

s4, inserting the pre-buried treatment rod into the landfill pit, enabling the bottom end of the pre-buried treatment rod to penetrate through the water seepage anti-settling plate 002 in the S3 and be inserted into the soil below the landfill pit until the supporting block 117 below abuts against the water seepage anti-settling plate 002;

s5, filling the sludge treated in the S1 into a landfill pit until the height of the sludge is flush with the supporting block 117 above;

s6, sleeving the other water seepage and sinking prevention plate 002 on the outer wall of the embedded treatment rod, and enabling the other water seepage and sinking prevention plate to be abutted against the supporting block 117 above;

and S7, taking the in-situ soil dug out in the part S2, and filling the in-situ soil into the landfill pit until the landfill pit is filled and leveled to form an original soil layer.

The invention is provided with a specially-made pre-buried treatment rod and a matched treatment method, according to the scheme, the treatment method is provided, after the sludge is treated by using the pre-buried treatment rod, when the sludge is settled, the settlement filling agent can spontaneously expand and extrude the elastic membrane 116 to enable the elastic membrane 116 to bulge outwards, the outwards bulge of the elastic membrane 116 can play a role of filling and can extrude the sludge settled downwards, so that the sludge settled downwards is driven to rise upwards, the settlement of the sludge is further repaired, the surface collapse of the original soil layer is prevented, the safety performance is greatly improved, and the water seepage and settlement preventing plate 002 is combined with the supporting block 117 to play an effective support for the original soil layer on the premise of not influencing the seepage of water in the soil, so that the surface of the original soil layer is further prevented from collapsing, and the practicability is greatly improved.

The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.

Claims (10)

1. The utility model provides a sludge treatment device, includes pre-buried processing rod and two infiltration anti-settling plates (002), its characterized in that: the embedded processing rod comprises a hollow rod body (101), a sinking sensing annular plate (102) is sleeved on the outer side of the hollow rod body (101), a fixing plate (103) is fixedly connected to the inner wall of the hollow rod body (101), a supporting spring (104) is fixedly connected to the top of the fixing plate (103), a linkage block (105) is fixedly connected to the top end of the supporting spring (104), linkage rods (106) are fixedly connected to the outer walls of two sides of the linkage block (105), a linkage gear (108) is rotatably connected to the inner wall of one side of the back of the hollow rod body (101), a driving rack (109) and a driven rack (110) are respectively meshed to two sides of the linkage gear (108), a connecting plate (111) is arranged above the linkage gear (108), and a plurality of hole blocking blocks (112) which are uniformly distributed in an annular shape are fixedly connected to the top of the connecting plate (111), the novel water-saving hollow rod is characterized in that a plurality of water inlet holes (113) are formed in the outer wall of the top end of the hollow rod body (101), a plurality of water seepage holes (115) penetrating through the fixing plate (103) are formed in the fixing plate (103), a plurality of elastic membranes (116) which are uniformly distributed in an annular shape are embedded and mounted in the outer wall of the hollow rod body (101), the elastic membranes (116) are arranged below the fixing plate (103), a sedimentation filler is filled in the lower portion of the fixing plate (103), two pairs of supporting blocks (117) are arranged on the hollow rod body (101), and each pair of supporting blocks (117) are fixedly connected to the outer walls of the two sides of the hollow rod body (101) respectively.

2. The sludge treatment apparatus according to claim 1, wherein: infiltration anti-settling plate (002) is including packing net (201), packing net (201) intussuseption is filled with rubble (202), packing net (201) the middle part seted up with hollow rod body (101) assorted connecting hole (203).

3. The sludge treatment apparatus according to claim 2, wherein: the particle size of the crushed stone (202) is 1-2 cm.

4. The sludge treatment apparatus according to claim 1, wherein: the outer walls of two sides of the hollow rod body (101) are provided with sliding grooves (107) matched with the linkage rods (106), and the linkage rods (106) penetrate through the sliding grooves (107) in a sliding mode and extend to the position fixedly connected with the sinking sensing annular plate (102).

5. The sludge treatment apparatus according to claim 1, wherein: one end of the driving rack (109) is fixedly connected with the linkage block (105), and one end of the driven rack (110) is fixedly connected with the connecting plate (111).

6. The sludge treatment apparatus according to claim 1, wherein: the outer walls of the two sides of the hollow rod body (101) are fixedly connected with sliding rails (114), and the two ends of the connecting plate (111) are respectively in sliding connection with the two sliding rails (114).

7. The sludge treatment apparatus according to claim 1, wherein: the water inlet holes (113) are matched with the hole plugging blocks (112), and the water inlet holes (113) are equal in number to the hole plugging blocks (112) and are in one-to-one correspondence.

8. The sludge treatment apparatus according to claim 1, wherein: the elastic membrane (116) is made of elastic rubber materials, and the sedimentation filler is made of water-absorbing expansion materials.

9. The treatment method of a sludge treatment apparatus according to any one of claims 1 to 8, wherein: the method comprises the following steps:

s1, concentrating and dehydrating the sludge;

s2, excavating the in-situ soil at the landfill site to form a landfill pit;

s3, putting a water seepage anti-settling plate (002) to the bottom of the landfill pit;

s4, inserting the pre-buried treatment rod into the landfill pit, and enabling the bottom end of the pre-buried treatment rod to penetrate through the water seepage anti-settling plate (002) in the step S (3) and be inserted into soil below the landfill pit until the supporting block (117) below abuts against the water seepage anti-settling plate (002);

s5, filling the sludge treated in the S1 into a landfill pit until the height of the sludge is flush with the supporting block (117) above;

s6, sleeving the other water seepage anti-settling plate (002) on the outer wall of the pre-buried treatment rod, and enabling the other water seepage anti-settling plate to abut against the supporting block (117) above the pre-buried treatment rod;

and S7, taking the in-situ soil dug out in the part S2, and filling the in-situ soil into the landfill pit until the landfill pit is filled and leveled to form an original soil layer.

10. The method according to claim 9, wherein: the method comprises the following steps: the landfill pit sets up to be cylindrical with infiltration anti-settling plate (002) assorted.

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